International Dictionary of Marine Aids to Navigation:Books/Test book
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[edit]
Alphabetical Index - 20 may 2012[edit]
- A-display
- A-N_Radio_range
- A.C._tachometer
- Aberration
- Absorptance
- Absorption
- Abutment
- Accelerator
- Access_hatch
- Access_ladder
- Access_manhole
- Accident
- Accredited_Training_Institute
- Accredited_training_programme
- Accuracy
- Acetylene
- Acoustic_impedance
- Acoustic_noise
- Actual_range_of_a_sound_signal
- Actuator
- Adaptation
- Adcock_antenna
- Adcock_direction_finder
- Adder
- Additional_Secondary_Factors_(ASF)
- Additive
- Aerial_mast
- Afterglow
- Aggregate
- Aid_to_navigation
- Aid_to_Navigation_(2)
- Aid_to_navigation_station
- Air-cooled_engine
- Air-depolarised_cell
- Air-mass
- Airtight
- Air_chamber
- Air_compressor
- Air_flow_guide
- Air_termination
- Air_termination_(of_a_lightning_protection_system)
- Air_turbine
- Alarm_system
- Alert_limit_(or_threshold_value)
- Algorithm
- All-Round_Light
- Allard's_Law
- Allied_Services
- Allowable_stress
- Alloy
- Along-track_error
- Alphanumeric
- Alteration
- Alternating-current_machine
- Alternating-current_motor
- Alternating_Light
- Alternator
- Aluminium
- Ambient_noise
- Ambiguity
- Ampere-hour_efficiency
- Amplidyne
- Amplitude
- Amplitude_modulation_(AM)
- Amplitude_of_an_observed_heavenly_body
- Analogue-digital_convertor
- Analogue_data
- Analogue_signal
- Anchor
- Anchorage
- Anchorage_Mark_(or_Buoy)
- Anchoring
- Anchor_bar
- Anchor_davit
- Anchor_ring
- Anchor_shackle
- Anechoic_room
- Angle_modulation
- Angle_of_Divergence
- Angle_of_incidence
- Angle_of_internal_friction
- Angle_of_Polarization
- Angle_of_reflection
- Angle_of_refraction
- Angle_of_Uncertainty
- Angle_section
- Angular_deviation_loss
- Angular_frequency
- Angular_resolution
- Anode
- Anode_efficiency_of_an_R.F._stage
- Anodising
- Antenna
- Antenna_array
- Antenna_effect
- Antenna_feed
- Antenna_matching_unit
- Antenna_radiation_resistance
- Anti-clutter_gain_control
- Anti-fouling_paint
- Anti-vibration_mountings
- Antinode
- Aperiodic_antenna
- Aperture
- Appearance_of_Light
- Approaches
- Arc
- Archaeology
- Arc_(Discharge)
- Arc_Lamp
- Armature
- Armour_(of_a_cable)
- Arris
- Artificial_antenna
- Asbestos
- Ashlar
- Assembled_Lens
- Assigned_frequency
- Assigned_frequency_band
- Astragals
- Astragals_(2)
- Asynchronous_motor
- Atmospheric_Refraction
- Atmospheric_Transmission_Factor
- Atterberg_limits
- Augmentation
- Aural_critical_band
- Aural_masking
- Auto-transformer
- Auto-transformer_starting_(of_an_a.c._motor)
- Automatic_control
- Automatic_control_system
- Automatic_direction_finder
- Automatic_frequency_control
- Automatic_gain_control
- Automatic_Identification_System_(AIS)
- Automatic_Identification_System_(AIS)_(2)
- Automatic_Identification_System_(AIS)_(3)
- Automatic_light_vessel
- Automatic_noise_limiter
- Automatic_operation
- Automatic_self-starting_generator_set
- Automatic_sequence_control
- Automation
- Auxiliary_contact
- Availability
- Availability_(qualitative)
- Availability_(quantitative)
- Average_load
- Axial_thrust
- Axis_(of_a_fixed_lens)
- Azimuth-stabilised_P.P.I.
- B-display
- Backing
- Backing_anchor
- Backlash
- Backshore
- Backwash
- Backwash_(GB)
- Back_echo
- Back_lobe
- Bad-bearing_sector
- Bake_buoy
- Ballast
- Ballast_(2)
- Ballast_(3)
- Ballast_Lamp
- Balustrade
- Bandwidth_characteristic
- Band_pressure_level
- Band_sound_power_level
- Bank_(1)
- Bank_(2)
- Bar
- Barge
- Barrel_Buoy
- Bar_(2)
- Baseband
- Base_line
- Base_line_extension
- Batch
- Batten
- Battery
- Battery_charger
- Battery_connected_to_a_power_source
- Battery_lead
- Battery_rack
- Battery_room
- Batter_(of_a_wall)
- Baud
- Baulk
- Bayonet_Cap
- Beach
- Beacon
- Beam
- Beam_width
- Bearing
- Bearings
- Bearing_(of_a_load)
- Bearing_-_Relative
- Bearing_calibration
- Bearing_capacity
- Bearing_circle
- Bearing_correction
- Bearing_surface
- Beat
- Beat_frequency_oscillator
- Beat_oscillator
- Beat_reception
- Bedplate
- Bedplate_(2)
- Bedrock
- Bed_(of_a_machine)
- Bell
- Bellini-Tosi_antenna
- Bellini-Tosi_direction_finder
- Bell_buoy
- Bell_Buoy_(2)
- Bell_striker
- Bell_striker_-_Dwell_time
- Bell_striker_-_Plunger
- Belt_(of_a_fixed_lens)
- Bending
- Bending_moment
- Bezold-Briicke_Phenomenon
- Biconical_antenna
- Bifurcation
- Bifurcation_Mark_(or_Buoy)
- Binary
- Binary_code
- Binary_coded_decimal_(notation)
- Binary_counter
- Binary_digit
- Binder
- Bitumen
- Blade_(of_a_wind-power_generator)
- Blade_pitch
- Blasting
- Blinding
- Blinking
- Blip
- Blip_scan_ratio
- Block
- Blocking_diode
- Block_diagram
- Blondel-Rey_Law
- Body
- Bolt
- Bond_(of_brickwork,_etc.)
- Bond_(reinforced_concrete)
- Booster_transformer
- Boost_charge
- Bored_piling
- Borehole_log
- Bosun's_chair
- Bower_anchor
- Bow_roller
- Box_pile
- Brace
- Braided_conductor
- Braiding_(of_a_cable)
- Brass
- Breadboard_model
- Breaking_(of_waves)
- Breakwater
- Breakwater_(2)
- Brick
- Bridge_pier
- Bridle
- Bridle_(chain)
- Bright_display
- Bringing_into_service
- Broad-band_antenna
- Broadside_array
- Bronze
- Brush
- Bucket_dredger
- Buckling_(of_a_plate_or_web)
- Buckling_(of_a_strut_or_column)
- Buffer
- Buffer_stage
- Building_contractor
- Bulb
- Bulldozer
- Bullivant_nipper
- Bullseye
- Bunch_Filament_(G.B.)
- Buoy
- Buoyage_and_beaconage
- Buoyant_beacon
- Buoy_(2)
- Buoy_(3)
- Buoy_lantern
- Buoy_light
- Buoy_pocket
- Buoy_station
- Buoy_store
- Buoy_vent
- Buoy_working_gangway_(GB)
- Buoy_yard
- Burn-in
- Burner
- Busbar
- Butane
- Buttress
- Cable
- Cable_(2)
- Cable_holder_(GB)
- Cable_reliever
- Cable_terminal_box
- Cairn
- Caisson
- Calibration_marks
- Calorific_value_(of_a_fuel)
- Camshaft
- Canal
- Candela
- Candela_per_Square_Metre
- Cannibalization
- Canopy
- Cantilever
- Can_Buoy
- Cap(G.B.)
- Capacitor_motor
- Capacity_(of_a_cell_or_battery)
- Capstan
- Carbon_Arc_Lamp
- Carbon_dioxide
- Carburettor
- Cardinal_system_of_marking
- Cardioid_reception
- Carrier_(wave)
- Carrier_power
- Carrier_power_(2)
- Cast_in-situ_piling
- Cast_iron
- Catadioptric
- Cathode
- Cathode_ray_direction_finder
- Cathode_ray_tube_display
- Cathodic_protection
- Cathodic_protection_(2)
- Catoptric
- Catwalk
- Celestial_horizon
- Cement
- Centre_of_buoyancy_(of_a_buoy)
- Centre_of_gravity_(of_a_buoy)
- Ceramic_tile
- Cetane_number_(for_diesel_fuel)
- Chain_locker
- Chain_sling
- Chain_stopper
- Channel
- Channel_Light
- Character
- Characteristic
- Characteristic_frequency
- Character_(of_a_navigation_light)
- Character_recognition
- Charge
- Charge_(2)
- Chart_comparison_unit
- Chart_datum
- Chart_error
- Chayka
- Cheese_antenna
- Chemically-depolarised_cell
- Chequers_(G.B.)
- Chimney
- Chipboard
- Chock
- Chopper
- Chopping
- Chord_line
- Chromaticity
- Chromaticity_Co-ordinates
- Chute
- Circle_of_uncertainty
- Circuit_breaker
- Circularly_polarized_wave
- Clamp
- Clapotis
- Clapper
- Classification_of_bearings
- Classification_of_emissions
- Clay
- Climbing_form
- Clock
- Clock_coder_(G.B.)
- Closed_Loop
- Closed_loop_control_system
- Closed_position_(of_a_switch)
- Clutch
- Clutter
- Coast
- Coastal_Mark
- Coastal_protection
- Coastal_refraction
- Coastal_tender_(USA)
- Coasting
- Coast_guard_station
- Coating
- Coat_(of_paint)
- Coder
- Code_wheel
- Coefficient_of_(Reflex)_Luminous_Intensity
- Coefficient_of_permeability
- Coefficient_of_thermal_expansion
- Cofferdam
- Cohesion
- Coiled-Coil_Lamp
- Coincidence_factor
- Collapse_load
- Collector_ring
- Colorimetry
- Colour_(G.B.)
- Colour_Filter
- Colour_Stimulus
- Colour_Temperature
- Column
- Command
- Commutated-capacitor_tachometer
- Commutator
- Compaction
- Companding
- Comparing_element
- Compensated_loop_direction_finder
- Compensation
- Compensation_(2)
- Competence
- Competent_Authority
- Complementary_Wavelength
- Complex_sound
- Composite_Group-Flashing_Light
- Composite_Group-Occulting_Light
- Compound-wound_machine
- Compressed-air_diaphragm_horn
- Compressed_air
- Compression
- Compression_(2)
- Compression_ratio
- Compressor_unloading_system
- Computer
- Computer_Programme_(G.B.)
- Concrete
- Concrete_block
- Concrete_mixer
- Conditions_of_contract
- Conductor
- Cones
- Confidence_interval
- Confidence_level
- Confidence_limits
- Confusion_region
- Conical_Buoy_(G.B.)
- Connecting_rod
- Conservation
- Conservation_Area
- Consol
- Consolidation
- Constant-current_transformer
- Constant-failure-rate_period
- Contactor
- Contacts_(of_a_switch)
- Continuity
- Continuous-wave_radar
- Continuous_beam
- Continuous_duty
- Contract_documents
- Contrast
- Contrast_Threshold
- Control
- Control_accuracy
- Control_action
- Control_cubicle
- Control_desk
- Control_gear
- Control_panel
- Control_range
- Converged_Beam
- Conversion
- Conversion_of_electric_energy
- Converter
- Cophasing
- Coping
- Copper
- Corbel
- Core_(of_a_cable)
- Core_drilling
- Core_sample
- Cork
- Cork_board
- Corner_antenna
- Corner_reflector
- Cornice
- Corrected_bearing
- Correcting_range
- Correction
- Correction_curve
- Corrective_action
- Corrective_maintenance
- Correlated_Colour_Temperature
- Corrosion
- Corrugated_sheet
- Cost_estimate
- Counter
- Counterpoise
- Course
- Coverage
- Cover_(of_reinforcement)
- Craft_autonomous_integrity_monitoring_(CAIM)
- Crane
- Crank
- Crankcase
- Crankshaft
- Creep
- Cross-band_transponder
- Cross-track_error
- Crossbar_switch
- Crossbeam
- Crosstalk
- Cross_modulation
- Cruciform_Filament
- Crushing_test
- Crystal-oscillator_drive
- Cube_test
- Cupola
- Curing
- Current
- Current-voltage_characteristic
- Current_(sensitive)_relay
- Curtain_wall
- Curve_of_Luminous_Intensity_Distribution
- Cut-in_wind_speed_(of_a_wind-power_generator)
- Cut-off_screen
- Cut-off_wall
- Cut-out_wind_speed_(of_a_wind-power_generator)
- Cut_screen
- Cut_Screen_(G.B.)
- Cycle
- Cycle_(2)
- Cycle_life
- Cylinder_(of_a_reciprocating_engine)
- Cylinder_block
- Cylinder_head
- Cylinder_liner
- Cylindrical_Filament
- Cylindrical_wave
- D.C._tachometer
- Damp-proof_course
- Damp-proof_membrane
- Damping
- Danger
- Dan_buoy
- Dashpot
- Data
- Data_processing
- Data_reduction
- Davit
- Daylight_control
- Daylight_Control
- Daylight_Signal_Light
- Daymark
- Daytime_Character
- De-emphasis
- Dead_load
- Dead_time
- Dead_time_(2)
- Dead_zone
- Debug
- Debugging
- Decay_time_(of_a_pulse)
- Decca_Bowl
- Decca_Comparison_frequency
- Decca_Drift
- Decca_Fundamental_frequency
- Decca_Lambda
- Decca_Lane_fraction_pointer
- Decca_Lane_identification
- Decca_Lane_identification_meter
- Decca_Lane_pointer
- Decca_Lane_slip
- Decca_Line
- Decca_Locking_constant
- Decca_Navigator
- Decca_navigator_system
- Decca_Night_errors
- Decca_Referencing
- Decca_Sector_pointer
- Decca_Variable_errors
- Decca_Vernier_pointer
- Decca_Zone
- Deck_crane
- Decoder
- Decometer
- Deflection
- Deflection_curve
- Deformation
- Demodulation_-_AM
- Demodulation_-_FM
- Depolished_Glass
- Depot
- Depot_motor_launch
- Depth_of_discharge
- Derating
- Derivative_action
- Derrick
- Derrick_(2)
- Derrick_hoist
- Design
- Designation
- Designation_of_emissions
- Design_load
- Design_wave
- Detecting_element
- Detection
- Detection_(2)
- Detector
- Detector_(U.S.A.)
- Deviation
- Deviation_ratio
- Diameter_(of_a_chain)
- Diamond_pane
- Diaphone
- Diaphone_-_Cylinder
- Diaphone_-_Driver
- Diaphone_-_Piston
- Diaphragm
- Diaphragm_wall
- Dielectric_lens
- Dielectric_reflector
- Diesel_engine
- Diesel_generator_set
- Diesel_oil
- Difference_in_Time_Of_Arrival_(DTOA)
- Differential_Omega
- Differential_relay
- Differential_system
- Differentiator
- Diffraction
- Diffraction_(2)
- Diffraction_region
- Diffuser
- Diffuse_Reflection
- Diffuse_Transmission
- Diffusion
- Diffusion_Factor
- Digit
- Digital-analogue_convertor
- Digital_computer
- Digital_data
- Digitize
- Dihedral_reflector
- Dike
- Dike_(2)
- Dilution_of_precision_(DOP)
- Dioptric
- Dip
- Dipole
- Direct-current_generator
- Direct-current_machine
- Direct-current_motor
- Directional_antenna
- Directional_gain
- Directional_pattern
- Direction_finder
- Direction_finding_-_radio
- Direction_finding_network
- Direction_finding_site
- Direction_Light
- Direction_Light_(2)
- Directivity
- Directivity_factor
- Directly_controlled_variable
- Direct_coupling
- Direct_on-line_starting_(of_a_motor)_(G.B.)
- Direct_wave
- Disability_Glare
- Discharge
- Discharge_Lamp
- Discomfort_Glare
- Disconnector
- Discontinuation
- Dispersion
- Display
- Display_(2)
- Display_factor
- Distance_finding_station
- Distance_resolution
- Distance_root_mean_square_(dRMS)
- Distant_site_error
- Distortion
- Distribution_box
- Distribution_cubicle
- Distribution_network
- Distribution_of_electric_energy
- Distribution_Temperature
- Distributor
- Disturbance
- Dither
- Diver
- Diverged_Beam
- Diversity_factor
- Diversity_reception
- Diverted_Beam
- Diverting_Prism
- Diving_bell
- Docking_Signals
- Dog
- Dog_step
- Dolphin
- Dolphins
- Dominant_Wavelength
- Door_frame
- Door_leaf
- Dot_element
- Double_sideband_transmission_(DSB)
- Double_topping_lift
- Douglas_Lamp_(G.B.)
- Dovetail
- Dowel
- Down_lead
- Down_time
- Drain
- Drainpipe
- Dredging
- Drift_circle
- Drift_circle_radius
- Drilling
- Drip
- Drip-protected_enclosure_(or_machine)
- Driven_length_(of_a_pile)
- Driving_resistance_(of_a_pile)
- Dropping
- Drum_Lens
- Dry_cell
- Dry_Dock
- Duckboards
- Duplex_(2)
- Duty_(of_a_machine_or_apparatus)
- Duty_factor_(of_a_machine_or_apparatus)
- Dwarf_wall
- Dye
- Dynamic_load
- E-Navigation
- Earthed_neutral_system
- Earthing_conductor
- Earthing_switch
- Earthworks
- Earth_conductor
- Earth_electrode
- Earth_system
- Easily_recognizable_structure
- Echoing_area
- Echoing_volume
- Echo_box
- Eclipse
- Eddy
- Effective_acoustic_centre
- Effective_height_(G.B.)
- Effective_height_(U.S.A.)
- Effective_Intensity
- Effective_length
- Effective_radiated_power
- Effective_radius_of_the_earth
- Effective_range
- Efficiency_of_a_sound_source
- Elasticity
- Electrical_centre
- Electrical_distance
- Electrical_scanning
- Electric_detonator
- Electric_field
- Electric_field_strength
- Electric_generator
- Electric_installation
- Electric_motor
- Electrochemical_cell
- Electrode
- Electrode_(2)
- Electrode_(3)
- Electrodynamic_emitter_-_Diaphragm_assembly
- Electrodynamic_emitter_-_Diaphragm_suspension
- Electrodynamic_emitter_-_Driver
- Electrodynamic_emitter_-_Moving_coil
- Electroluminescence
- Electrolyte
- Electromagnetic_horn
- Electromagnetic_horn_-_Armature
- Electromagnetic_horn_-_Coil
- Electromagnetic_waves
- Electronic_position_indicator
- Electronic_switching_device
- Electroplating
- Elevated_duct
- Elliptically_polarized_wave
- ELoran
- Embankment
- Emergency_apparatus
- Emergency_battery
- Emergency_generator_set
- Emergency_Light
- Emulsion_paint
- Encoder
- End-of-charge_voltage
- End_bearing_pile
- End_fire_array
- End_point_voltage_(G.B.)
- Energy_consumption
- Engine_room
- Ensemble_of_aids_to_marine_navigation
- Enter_a_narrow_channel
- Entonite
- Entrance
- Entrance_floor
- Epoxy_paint
- Equalising_charge
- Equality_of_Laudness
- Equi-Angular_Lens
- Equi-Angular_Profile
- Equiphase_zone
- Equipotential_bonding
- Erosion
- Error-correcting_code
- Error-detecting_code
- Error_curve
- Error_in_bearing
- Error_signal
- Estuary
- Excavation
- Excavation_cover
- Excavator
- Excess_attenuation
- Excitation_(of_an_electric_machine)
- Excitation_winding
- Exclusion_Zone
- Executive_pulse
- Expand
- Expanded-centre_plan_display
- Expansion
- Explosive_fog_signal
- External_combustion_engine
- Extra_High_Pressure_Mercury_(Vapour)_Lamp
- Extreme_fibre
- Extruded_section
- Eye
- Eye_bolt
- Fabric
- Facing_wall
- Factor_of_safety
- Fading
- Failure
- Failure_rate
- Fail_safe
- Fair-faced_concrete
- Falsework
- Fascine
- Fast_ice
- Fathom
- Fatigue
- Fatigue_limit
- Fault
- Feathering
- Feedback
- Feedback_path
- Feedback_signal
- Feeder
- Fender
- Fenders
- Fender_pile
- Ferrite_rod_antenna
- Ferro-cement
- Fetch
- Field_alignment_error
- Field_coils
- Field_pole
- Figure_of_eight_reception
- Filament
- Filament_Support
- Filling_plug
- Fill_factor_(FF)
- Filter
- Final_controlled_variable
- Final_value
- Fishplate
- Fissure
- Fix
- Fixed-pitch_blade
- Fixed_antenna_direction_finder
- Fixed_Lens
- Fixed_Light
- Fixed_Mark
- Fixing
- Fixing_moment
- Fixity
- Flagpole
- Flame-protected_enclosure_(or_machine)
- Flame_Arc_Lamp
- Flange_(of_a_girder)
- Flange_(of_a_tube_or_pipe)
- Flap_valves
- Flash
- Flashed_Glass
- Flasher
- Flashing_(Optical)_Apparatus
- Flashing_Light
- Flash_Tube
- Flats
- Flat_top_antenna
- Flicker_Photometer
- Floating_crane
- Floating_Mark
- Float_charge
- Floor_(of_a_room)
- Fluorescence
- Fluorescent_Lamp
- Fluorescent_Mercury_Discharge_Lamp
- Focal_Distance
- Focal_Plane_(of_a_lens_or_focusing_reflector)
- Focal_Plane_(of_a_light)
- Focusing
- Focusing_Device
- Focus_(of_a_fixed_lens)
- Fog
- Fog-bank_detector
- Fog_detector
- Fog_signal
- Fog_signal_emitter
- Fog_signal_port
- Fog_signal_stack
- Folded_dipole
- Folded_unipole_antenna
- Footbridge
- Footing
- Force
- Forced_oscillation
- Forelock
- Foreshore
- Formwork
- Forward_action_(general_term)
- Foundation
- Four-stroke_engine
- Four-wire_repeater
- Frame
- Frame_(of_an_optic)
- Fraunhofer_region
- Free_oscillation
- Free_sound_field
- Frequency
- Frequency-modulated_radar
- Frequency_channel
- Frequency_converter
- Frequency_deviation
- Frequency_division_multiplex_(FDM)
- Frequency_group
- Frequency_modulation_(FM)
- Frequency_monitor
- Frequency_swing
- Frequency_tolerance
- Fresh_concrete
- Fresnel_Lens
- Fresnel_Profile
- Fresnel_region
- Friction_pile
- Front_Light
- Frosted_Lamp
- Fuel_(2)
- Fuel_cell
- Fuel_consumption
- Fuel_system
- Full-load_operation
- Full_carrier
- Full_Operational_Capability_(FOC)
- Full_Radiator
- Fundamental_frequency
- Furling
- Furniture_(architectural)
- Fuse
- Fuse_carrier
- Fuse_link
- Fuse_Valve
- Fusible_plug
- Fusion_Frequency
- Gabion
- Gain_function
- Gain_of_an_antenna
- Gain_referred_to_a_short_vertical_antenna
- Gallery
- Gantry_crane
- Gap_coding
- Gas-Filled_Lamp
- Gaseous_Discharge_Lamp
- Gas_cylinder
- Gas_engine
- Gas_Jet
- Gate
- Gear_box
- Gel_coat
- Generation_of_electric_energy
- Generator_set
- Geographical_Range
- Geological_survey
- Glare
- Glass-reinforced_plastic
- Glass_wool
- Glazing
- Glazing_bars
- Global_Maritime_Distress_and_Safety_System_(GMDSS)
- Global_Navigation_Satellite_System_(GNSS)
- Glossary
- Gneiss
- Go-no-go_testing
- Goliath_Cap_(G.B.)
- Gong
- Gong_buoy
- Gong_Buoy_(U.S.A.)_(2)
- Gong_buoy_(USA)
- Grab_dredger
- Gradient
- Grading
- Granite
- Grapnel
- Grass
- Gray_code
- Grid_Filament
- Grit
- Groin
- Gross_errors
- Ground-plane_antenna
- Ground_and_Polished_Glass
- Ground_beam
- Ground_chain
- Ground_clutter
- Ground_swell
- Ground_wave
- Ground_wave_-_Radar
- Ground_wave_suppression
- Group-Flashing_Light
- Group-Occulting_Light
- Group_of_wood_or_steel_poles
- Grout
- Grout_curtain
- Groyne
- Guard-rail
- Guide_blades
- Gunmetal
- Gusset_plate
- Gust_of_wind
- Gutter
- Gutter_(of_a_roof)
- Guy
- Hack_boat_(GB)
- Half-duplex_(circuit)
- Half_wave_dipole
- Halide_Lamp
- Hammer
- Handling_capacity
- Handrail
- Handy-billy_tackle
- Hardener
- Hardening_(of_concrete)
- Hardware
- Harmful_interference
- Harmonic_radiation
- Hatch
- Hawsepipe_(of_a_vessel)
- Hawser
- Hazardous_Cargoes
- Head
- Heading
- Helical_antenna
- Helideck
- Helipad
- Hi-fix
- High-speed_launch
- High_Focal_Plane_Buoy
- High_Intensity_Carbon_Arc_Lamp
- High_Pressure_Arc_Discharge_Lamp
- High_Pressure_Mercury_(Vapour)_Lamp
- High_Pressure_Sodium_(Vapour)_Lamp
- High_tensile_steel
- Hinge
- Hinged
- Historic_Lighthouse
- Hogging_moment
- Hoghorn
- Hollow_flooring_block
- Hollow_truncated_cone_filament
- Homing
- Hook
- Horizontally_polarized_wave
- Horizontal_beam_width
- Horn
- Horn_-_Antenna
- Hot-dip_galvanising
- Hour_meter
- HSFG_bolt
- Hub_(of_a_wind-power_generator)
- Hub_height_(of_a_rotor)
- Hue
- Hunting
- Hunting_(of_an_electric_machine)
- Hybrid_transformer
- Hydrocarbon
- Hydrogen
- Hydrometer
- Hyperstatic
- Hysteresis
- Ice_floe
- Ice_ridge
- Ice_thrust
- Idealized_system
- Ideal_value
- Identification_signal
- Illuminance
- Illuminant
- Illumination_Photometer_(G.B.)
- Image
- Image_frequency
- In-situ_concrete
- Incandescence
- Incandescence_Time_(of_a_lamp)
- Incandescent_(Electric)_Lamp
- Indirectly_controlled_variable
- Induction_coil
- Induction_field
- Induction_motor
- Infant-mortality_period
- Information
- Information_theory
- Inherent_regulation
- Inhibit
- Initialize
- Initial_Operational_Capability_(IOC)
- Injection
- Injectors
- Injector_pump
- Inland_tender_(USA)
- Inlet_chamber
- Input_(process)
- Input_channel
- Input_data
- Input_device
- Input_state
- Input_variable
- Inspection_cover
- Installation_error
- Installed_capacity
- Instantaneous"_automatic_gain_control
- Instantaneous_frequency
- Instantaneous_sound_power_per_unit_area
- Instantaneous_value
- Instantaneous_value_(2)
- Instruction(s)_(as_to_a_vessel’s_navigation_or_movements)
- Instrumental_error
- Insulated_cable
- Insulating_material
- Insulation_(of_a_cable)
- Insulator
- Integral_action
- Integrated_navigation_system
- Integrating_Photometer
- Integrity
- Intensity_modulation
- Inter-trace_display
- Interference
- Interlocking_equisignal_system
- Intermediate_frequency
- Intermediate_Light(s)
- Intermittent_duty
- Intermodulation_products
- Internal_Absorptance
- Internal_combustion_engine
- Internal_Transmittance
- International_Terrestrial_Reference_Frame_(ITRF)
- Interrogating_signal
- Interrogator
- Interrupted_Quick-Flashing_Light
- Intervention
- Inverse_Square_Law
- Inverter
- Ionosphere
- Ionospheric_path_error
- Ionospheric_wave
- Ipot
- Iron
- Irradiance
- Island_station
- Isocandela_Curve_(G.B.)
- Isolated_danger
- Isolated_Danger_Mark_(or_Buoy)_(G.B.)
- Isolated_neutral_system
- Isolating_transformer
- Isophase_Light
- Isostatic
- Isotropic_or_absolute_gain_of_an_antenna
- Isotropic_radiator
- Jack
- Jack-up_platform
- Jamb
- Jetting
- Jetty
- Jib
- Jib_(2)
- Jitter
- Joint_(of_concrete)
- Joist
- Junction
- Junction_box
- Junction_Mark_(or_Buoy)
- Kenter_shackle
- Kentledge
- Kerb
- Keyer_(U.S.A.)
- Keying
- Keying_relay
- KeySender
- Key_click
- Kink
- Knocking_(in_a_petrol_engine)
- Ladder_cage
- Ladder_hoop
- Lag
- Lamp
- Lampholder
- Lamp_Changer
- Landfall_Light
- Landfall_Mark_(or_Buoy)
- Landing
- Landing_(of_a_stairway)
- Landing_stage
- Landing_stage_(2)
- Landmark
- Land_drain
- Land_light
- Lane
- Lane_count
- Lantern
- Lantern_(2)
- Lantern_deck
- Lantern_gallery
- Lantern_Glazing_(G.B.)_(2)
- Lantern_glazing_(GB)
- Lantern_handhold
- Lantern_tower
- Lap_(of_reinforcement)
- Large_navigation(al)_buoy
- Lashing
- Latching_relay
- Latency
- Lateral_deviation
- Lateral_deviation_error
- Lateral_system_of_marking
- Lathing
- Lattice
- Lattice_(2)
- Lead
- Lead-acid_cell
- Lead-in
- Lead-in_Wire
- Lead-sheathed_cable
- Leaders
- Leading_edge
- Leading_Lights_(G.B.)
- Leading_line
- Leading_Marks_(G.B.)
- Leakage_power
- Leakproof_cell
- Leg_(of_chain)
- Lens
- Lens_Carriage
- Lewis_(GB)
- Life_(of_a_lamp)
- Life_Test
- Lifting_eye
- Lifting_gear
- Lift_(of_concrete)
- Light
- Light-Centre-Length
- Lighted_Buoy
- Lighted_coastal_mark
- Lighthouse
- Lighthouse_(PHL)
- Lighthouse_service
- Lighthouse_tender
- Lighting
- Lighting_(of_a_light)
- Lightning_conductor
- Lightning_conductor_(2)
- Light_(2)
- Light_(3)
- Light_(4)
- Light_Checking_device
- Light_controller
- Light_Exposure
- Light_float
- Light_reflection_properties
- Light_Stimulus
- Light_Valve
- Light_vessel
- Light_vessel_station
- Limestone
- Limited_signal
- Limit_state_design
- Line
- Linearly_polarized_wave
- Linear_Absorption_Coefficient
- Linear_detection
- Linear_detector
- Line_conductor
- Line_voltage_(of_a_three-phase_alternator)
- Link
- Link_(of_a_chain)
- Lintel
- Liquidity_index
- Liquid_petroleum_gas
- Load
- Load-bearing_stratum
- Load_(2)
- Load_factor
- Load_Regulation
- Lobe
- Local_control
- Local_generation
- Local_oscillator
- Log_(of_wood)
- Long-Arc_Lamp
- Long_dash
- Lookout
- Loom
- Loop_alignment_error
- Loop_antenna
- Loop_gain
- Loop_transfer_function
- Lorac
- Loran_A
- Loran_Base_line_extension_monitor
- Loran_C
- Loran_chart
- Loran_Cycle_match
- Loran_C_(2)
- Loran_C_Phase_coding
- Loran_Drift_control
- Loran_Envelope_match
- Loran_Fixed_slave_time_delay
- Loran_monitor_station
- Loran_Slew_control
- Loran_Specific_repetition_rate
- Loran_stations
- Loran_system
- Loran_Time_base
- Loudness
- Loudness_level
- Loudness_level_contour
- Low_Pressure_Mercury_(Vapour)_Lamp
- Low_Pressure_Sodium_(Vapour)_Lamp
- Lubrication_system
- Lumen
- Luminance
- Luminescence
- Luminosity
- Luminous_beam
- Luminous_Efficacy
- Luminous_Element
- Luminous_Exitance
- Luminous_fan_beam
- Luminous_Flux
- Luminous_Intensity
- Luminous_Pencil_Beam
- Luminous_Range
- Luminous_ray
- Luneberg_lens
- Lux
- L_antenna
- Machining
- Magnetic_amplifier
- Magnetic_Declination
- Magnetic_Dip
- Magnetic_field_strength
- Mains_supply
- Maintainability
- Maintenance
- Maintenance-free_battery
- Main_beam
- Main_channel
- Main_drum_(of_a_winch)
- Main_Electrode
- Main_Light
- Main_lobe
- Making_land
- Management
- Manifold_(U.S.A.)
- Manipulated_variable
- Manned_Light_(U.S.A.)
- Mantle
- Mantle_Burner
- Manual_control
- Marginally_detectable_bias_(MDB)
- Marginally_detectable_error_(MDE)
- Marker_beacon
- Marl
- Masonry
- Master_oscillator
- Master_station
- Matching_unit
- Material
- Matrix
- Mattress
- Maximum_power(Pmax)
- Mean_life
- Mean_line_of_course
- Mean_power
- Mean_power_(2)
- Mean_sea_level
- Mean_time_between_failures
- Mean_time_between_failures_(MTBF)
- Mean_time_to_repair
- Mean_Time_To_Repair/Restore_(MTTR)
- Mean_wind_speed
- Measured-Mile_Buoy
- Measuring_element
- Measuring_point
- Mechanical_scanning
- Memory_effect
- Mercury_Bath
- Mercury_switch
- Mercury_switch_(2)
- Mercury_wetted_relay
- Mesopic_Vision
- Message
- Messenger
- Messmotor_(G.B.)
- Metacentre_(of_a_buoy)
- Metacentric_height
- Metadyne
- Metallised_Lamp
- Metal_spraying
- Metal_Vapour_Lamp
- Meteorological_Optical_Range
- Meteorological_Visibility
- Method_of_bins
- Micrometer_Valve
- Mid-Channel_Mark_(or_Buoy)
- Middle-Ground_Marks_(or_Buoys)
- Middle_grounds
- Mild_steel
- Mill_scale
- Mimic_diagram
- Miniature_Cap
- Minimum_clearing
- Minimum_distance
- Minimum_signal
- Mirror
- Mission_time
- Mixed_Reflection
- Mixed_Transmission
- Mixer
- Modified_refractive_index
- Modular_construction
- Modulation
- Modulation_envelope
- Modulator
- Module
- Modulus_of_elasticity
- Moisture_content
- Mole
- Monitor
- Monkey
- Monochromatic_radiation
- Mooring
- Mooring_buoy
- Mooring_eye
- Mooring_line
- Mooring_recovery_wire
- Mooring_rope
- Morse_Code_Light
- Mortar
- Mortar_bed
- Moulded_Glass_(or_plastic)
- Moving_target_indication
- Multi-cylinder_engine
- Multi-point_mooring
- Multi-Vee_Filament_(G.B.)
- Multicore_cable
- Multipath_propagation
- Murette
- Mushroom_anchor_(USA)
- Muting
- M_profile
- M_unit
- Nautical_mile
- Navigation
- Navigation_(2)
- Navigation_Lights
- Navigation_Mark
- Necessary_bandwidth
- Negative_feedback
- Neutral_axis
- Neutral_conductor
- Neutral_Filter
- Nickel-cadmium_cell
- Nickel-iron_cell
- Night_effect
- Nigrescence_Time_(of_a_lamp)
- Nipple
- No-break_power_system
- No-load_operation
- Node
- Noise
- Noise_-_electrical
- Noise_figure
- Nominal_operating_cell_temperature
- Nominal_Range
- Nominal_range_of_a_sound_signal
- Nominal_voltage
- Non-skid_covering
- Normal_threshold_of_hearing
- Nut
- Observed_bearing
- Occasional_Light
- Occultation
- Occulting_Hood
- Occulting_Light
- Occupied_bandwidth
- Octahedral_cluster
- Octane_number_(of_petrol)
- ODAS_buoy
- Off-centre_plan_display
- Off-normal_(G.B.)
- Off-peak_period
- Off-peak_power
- Offset
- Oil_Lamp
- Oil_store
- Omega
- Omega_Antipodal_effects
- Omega_Commutation
- Omega_Lane_resolution
- Omnidirectional_antenna
- On-load_voltage
- On-off_control_system
- On-off_keying
- On-off_switch
- On-the-job_training_(OJT)
- Opal_Lamp
- Open-circuit_voltage
- Open-circuit_voltage_(Voc)
- Open-link_chain
- Open-loop_control
- Open-mesh_flooring
- Open_loop
- Open_position_(of_a_switch)
- Operable
- Operating
- Operating_air
- Operating_conditions
- Optic
- Optical_Axis
- Optical_coupler
- Optical_Density
- Optical_Focus
- Optical_Glass
- Optical_Panel
- Optic_Pedestal
- Optic_rotation_mechanism
- Optimum_load_impedance
- Order_(of_an_optic)
- Organ_of_Vision
- Oscillating_water_column
- Outfall_Mark_(or_Buoy)
- Output_(process)
- Output_channel
- Output_data
- Output_device
- Output_power
- Output_state
- Over-interrogation
- Overall_efficiency_of_an_R.F._stage
- Overhead_(power)_line
- Overload
- Overload_(2)
- Overload_protection
- Overload_relay
- Overturning_moment
- Oxidation
- Oxygen
- Pack_ice
- Padstone
- Paint
- Painting_(process)
- Paint_(2)
- Parabolic_antenna
- Parabolic_Reflector
- Paraffin_(soil)
- Paraffin_Vapour_Lamp
- Parallel-plate_lens
- Parallelling
- Parallel_connection_(of_sources)
- Parallel_redundancy
- Parapet
- Parasitic_radiation
- Parity_bit
- Parity_check
- Parity_code
- Pass
- Pattern
- Pattern_recognition
- Peak_envelope_power
- Peak_envelope_power_(2)
- Peak_load
- Peak_pulse_power_(carrier_frequency)
- Peak_wind_speed
- Peat
- Pentagonal_cluster
- Percentage_content_(of_solids)
- Percentage_of_Visibility
- Perception
- Performance_monitor
- Period
- Periodic_duty
- Periodic_quantity
- Period_(of_a_rhythmic_light)
- Permanent-magnet
- Permanent_echo
- Permanent_Light
- Permanent_load
- Petrol_(G.B.)
- Petrol_engine
- Phantom_target
- Phase
- Phase_converter
- Phase_deviation
- Phase_meter
- Phase_modulation_(PM)
- Phase_voltage_(of_a_three-phase_alternator)
- Phosphorescence
- Photo-electric_switch
- Photoelectric_Photometer
- Photoluminescence
- Photometer
- Photometry
- Photopic_Vision
- Physical_Photometer
- Pick-up_factor
- Pick-up_ratio
- Pickling
- Pier
- Pierhead
- Pier_(2)
- Pigment
- Pile
- Pile_cap
- Pile_driving
- Pile_helmet
- Piling
- Pilotage
- Piloting
- Pilot_Light
- Pin
- Pin_Cap_(G.B.)
- Pipe
- Piston
- Piston_ring
- Pitch
- Pitch_(of_a_chain)
- Place_of_Refuge
- Plane_of_polarization
- Plane_polarized_wave
- Plane_wave
- Plank
- Plan_position_indicator
- Plastic(s)
- Plasticity
- Plasticity_index
- Plate
- Plate_Glass
- Platform
- Play
- Plinth
- Plug_(masonry)
- Plug_(top)
- Plywood
- Pneumatic_relay
- Pointing
- Point_Brilliance
- Point_source
- Point_visibility_meter
- Point_Vision
- Poisson's_ratio
- Polarisation_(of_an_electrochemical_cell)
- Polarization
- Polarization_error
- Polarized_relay
- Pole_Beacon
- Polychromatic_radiation
- Polymer
- Pontoon
- Population
- Portal_frame
- Port_Hand_Mark_(or_Buoy)
- Position_control_system
- Position_determination
- Position_fixing
- Position_line
- Position_line_(2)
- Position_of_rest
- Positive_feedback
- Post
- Potential_annual_energy_output_(of_a_wind-power_generator)
- Potentiometer
- Power
- Power_curve_(of_a_wind-power_generator)
- Power_gain_-_antenna
- Power_line
- Power_pack
- Power_system
- Pre-emphasis
- Pre-Focus_Cap
- Pre-Focus_Lamp
- Pre-ignition
- Precast_concrete
- Precision
- Predrilled
- Prefabricated
- Preservation
- Pressure
- Pressure-reducing_valve
- Pressure-relief_valve
- Pressure_reducing_valve
- Pressure_stat
- Prestressing
- Preventive_maintenance
- Pricking_Out
- Primary_cell
- Primary_Light_Source
- Primary_radar
- Primer
- Prime_mover
- Principal_axis
- Prism
- Prismatic_Lens
- Prismatic_Section
- Profile_(of_a_fixed_lens)
- Profile_(of_a_lens,_other_than_a_fixed_lens)
- Progressive_wave
- Projector
- Projector_Lamp_(G.B.)
- Propagation_error
- Propane
- Proportional_action
- Proportional_plus_derivative_action
- Proportional_plus_integral_action
- Proportional_plus_integral_plus_derivative_action
- Protected_enclosure_(or_machine)
- Protected_machine
- Protection
- Pseudolite_(pseudo-satellite)
- Pulse
- Pulse-modulated_radar
- Pulse_amplitude_modulation_(PAM)
- Pulse_code_modulation_(PCM)
- Pulse_droop
- Pulse_duration
- Pulse_duration_coding
- Pulse_duration_modulation_(PDM)
- Pulse_duty_factor
- Pulse_forming_line
- Pulse_frequency_modulation
- Pulse_modulation_(by_pulses)
- Pulse_modulation_(of_pulses)
- Pulse_position_modulation_(PPM)
- Pulse_power
- Pulse_repetition_frequency
- Pulse_repetition_frequency_(PRF)
- Pulse_repetition_rate
- Pulse_repetition_rate_(PRR)
- Pulse_rise_time
- Pulse_spacing
- Pulse_spike
- Pulse_tilt
- Pulse_time_modulation_(PTM)
- Pulse_train
- Punching
- Pure_sound
- Purkinje_Phenomenon
- Purlin
- Push-button_(switch)
- PZ-90_geodetic_system
- Quantity_of_Light
- Quantization
- Quantization_distortion
- Quantization_error
- Quantizer
- Quarantine_(Ground)_Mark_(or_Buoy)
- Quarter_wave_skirt_dipole
- Quay
- Quay_(2)
- Quick-Flashing_Light
- Quick_lime
- R.F._head
- R.F._stage
- Rack
- Racon
- Radar
- Radar_beacon
- Radar_echo
- Radar_equation
- Radar_head
- Radar_performance_figure
- Radar_reflector
- Radar_reflector_response_pattern
- Radar_relay_system
- Radar_repeater
- Radar_target
- Radial_Screens
- Radiance
- Radiant_energy
- Radiant_exitance
- Radiant_exposure
- Radiant_intensity
- Radiant_power
- Radiation
- Radiation_efficiency
- Radiation_field
- Radiation_intensity
- Radiation_monitor
- Radiation_pattern
- Radio
- Radio-isotope_generator
- Radiodetermination
- Radiogoniometer
- Radiolocation
- Radionavigation
- Radio_beacon_-_Continuous_carrier
- Radio_beacon_-_Dual_carrier
- Radio_beacon_-_Non-Directional
- Radio_beacon_characteristic
- Radio_beacon_range
- Radio_beacon_station
- Radio_determination
- Radio_horizon
- Radio_leading_line
- Radio_Lens
- Radio_receiver
- Radio_telemetry
- Radio_transmitter
- Radio_waves
- Rafter
- Rain_clutter
- Rake_(of_a_pile)
- Raking_pile
- Ramark
- Ramp
- Rana_system
- Random_access
- Random_access_memory
- Random_error
- Random_error_(2)
- Random_triggering
- Range_marker
- Range_rings
- Ratan
- Rated_Life_(of_a_lamp)
- Rated_power_output
- Rated_wind_speed_(of_a_wind-power_generator)
- Rating
- Rating_(of_a_machine_or_apparatus)
- Raydist
- Raydist_Lane_resolution
- Raydist_Relay_station
- Re-entrant_horn
- Re-radiation
- Re-radiation_error
- Reaction
- Reactor-start_motor
- Ready-mixed_concrete
- Real_time
- Real_time_processing
- Reaming
- Rear_Light
- Rebate
- Rebuilding
- Receiver_radiation
- Reciprocating_(air)_compressor
- Reciprocating_engine
- Recombination
- Reconstruction
- Record
- Recorder
- Recording
- Recording_equipment
- Record_(2)
- Rectifier
- Reduced_carrier
- Redundancy
- Redundancy_(2)
- Red_lead_primer
- Reed
- Reed_box
- Reed_fog_signal
- Reed_holder
- Reef
- Reference_frequency
- Reference_input_signal
- Reflectance
- Reflection
- Reflector
- Reflector_(2)
- Reflector_Lamp
- Refraction
- Refraction_(2)
- Refractive_index
- Refractive_Index
- Refractive_modulus
- Refractor
- Refresher_Training
- Refurbishment
- Refusal
- Register
- Register_(2)
- Regular_Transmission
- Regulator
- Reinforced_concrete
- Reinforcement
- Reinforcing_bar
- Reinforcing_Mirror
- Relative_display
- Relative_gain_of_an_antenna
- Relay
- Reliability
- Reliability_(of_an_observation)
- Reliability_(of_a_position_fix)
- Relief
- Relief_davit
- Remotely_Controlled_Light
- Remote_control
- Rendering
- Renovation
- Repair
- Repeatability
- Repeater
- Reperforator
- Replication
- Reply_hits
- Reply_of_a_transponder
- Reserve_buoyancy
- Reset
- Residual_error
- Residual_octantal_error
- Resin
- Resistance-start_motor
- Resistance_starting_(of_a_motor)
- Resolution
- Resolve
- Resolving_time
- Resonance
- Resonance_(2)
- Resonant_reed_(2)
- Resonant_reed_filter
- Response_time
- Response_Time
- Responsor
- Restoration
- Retarder
- Retina
- Retro-Reflecting_Material
- Retro-Reflection
- Retro-Reflector
- Revalidation_Training
- Reversibility
- Reversing_switch
- Revetment
- Revolving_Screen
- Rhythmic
- Rhythmic_Light
- Rib
- Riding_chain
- Rigging
- Ring
- Ring_around
- Ring_beam
- Ring_bolt
- Ring_main
- Ring_time
- Ripple-through_counter
- Riprap
- Rise_time
- Rise_time_(of_a_pulse)
- Rising_main
- River_tender_(USA)
- Rivet
- Roads
- Rock
- Rods
- Rolled_section
- Rollers
- Roll_damping_device
- Roof_batten
- Root_mean_square_error_(RMS)
- Rotary_(air)_compressor
- Rotary_converter
- Rotary_electric_machine
- Rotary_stepping_relay
- Rotary_switch
- Rotating_loop_direction_finder
- Rotating_Optic
- Rotation_monitor
- Rotor_(of_an_electric_machine)
- Rotor_(of_a_wind-power_generator)
- Rotor_of_a_siren
- Rough_Service_Lamp
- Rubble_(stone)
- Rubble_mound_breakwater
- Running_ground
- Sacrificial_anode
- Safety
- Safety_hand-hold
- Safety_precautions
- Sagging_moment
- Sample
- Sampled-data_control_system
- Sampling_(of_a_signal)
- Sandstone
- Satellite_navigation
- Saturation
- Scaffolding
- Scan
- Scantling
- Scattered-light_meter
- Scattering
- Schmitt_trigger
- Scotch_mist
- Scotopic_Vision
- Scour
- Screed
- Screen
- Screen-protected_enclosure_(or_machine)
- Screened_cable
- Screened_loop_antenna
- Screened_transformer
- Screen_(2)
- Screen_wall
- Screw
- Screw_Cap
- Sea
- Seabed
- Sealed_cell
- Search
- Search_coil
- Seaward_pierhead
- Sea_(2)
- Sea_clutter
- Sea_horizon
- Secondary_battery
- Secondary_cell
- Secondary_Light_Source
- Secondary_phase_error
- Secondary_radar
- Second_moment_of_area
- Section
- Section_modulus
- Sector_(of_a_sector_light)
- Sector_Angle
- Sector_display
- Sector_Light
- Sector_scanning
- Seismic_forces
- Selective_Radiator
- Selectivity
- Selector_switch
- Self-check
- Self-rectifying_air_turbine
- Self_discharge
- Semaphore
- Semaphore_station
- Semicircular_component_of_error
- Senhouse_slip_(GB)
- Sensation
- Sense
- Sense_finding
- Sensitivity
- Sensor
- Separator
- Septic_tank
- Serial_operation
- Series-parallel_connection_(of_sources)
- Series-wound_machine
- Series_connection_(of_sources)
- Service_area
- Service_buoy
- Service_capacity
- Service_conditions
- Service_duct
- Service_life
- Service_motor_boat
- Service_room
- Service_Vessels
- Servo_mechanism
- Set-off
- Setting_(of_concrete)
- Settlement
- Settling_time
- Set_(of_a_pile)
- Set_value
- Shackle
- Shackle_(2)
- Shadowing_(of_a_solar_cell)
- Shadow_region
- Shaft_encoder
- Shallow
- Shallows
- Shear
- Shearlegs
- Shear_force
- Shear_stress
- Sheet-piled_wall
- Shelf_life
- Shell
- Shifting_sand
- Shift_register
- Shingle
- Ship_Domain
- Ship_Safety_Zone
- Shock_absorber
- Shop_primer
- Shoran
- Shoran_Calibrated_variable_phase_advancer
- Shoran_Indicator
- Shoran_Monitor
- Shoran_Time_base
- Shoran_Variable_delay_network
- Shore
- Shore_(2)
- Shore_station
- Short-Arc_Lamp
- Short-circuit_current_(Isc)
- Shot_blasting
- Shrinkage_(of_concrete)
- Shunt-wound_machine
- Shutdown_wind_speed_(of_a_wind-power_generator)
- Shutter
- Sideband
- Sideband_(2)
- Side_echo
- Side_frequency
- Side_lobe
- Side_lobe_suppression
- Sieve
- Sighting_Device
- Signal
- Signal-to-noise_ratio
- Signal_convertor
- Signal_flow_diagram
- Signal_Lamp
- Significant_wave_height
- Silent_period
- Sill
- Silt
- Simmering_Current
- Simplex
- Simply_supported_beam
- Single-Coil_Lamp
- Single-cylinder_engine
- Single-Flashing_Light
- Single-Occulting_Light
- Single-phase_alternator
- Single_point_of_failure
- Single_sideband_transmission_(SSB)
- Sinker
- Siren
- Site_error
- Site_error_susceptibility
- Site_investigation
- Skin_friction
- Skirting
- Skywave_accuracy_pattern
- Skywave_correction
- Slab
- Slag
- Slaked_lime
- Slate
- Slave_station
- Slewing_guy
- Sliding_form
- Sling
- Slip-ring_motor
- Slip_(of_an_asynchronous_machine)
- Slip_(of_a_soil)
- Slotted_guide_antenna
- Slot_radiator
- Small_tree
- Smoothing_filter
- Snatch_block
- Snow
- Socket_(outlet)
- Socket_and_plug_connection
- Soffit
- Software
- Soil_classification
- Solar_array
- Solar_cell
- Solar_energy
- Solar_irradiance
- Solar_irradiation
- Solar_module
- Solar_panel
- Solid_conductor
- Sound
- Sounding_air
- Sounding_valve
- Sound_absorption
- Sound_emitter
- Sound_emitter_-_Diaphragm
- Sound_emitter_-_Electric
- Sound_emitter_-_Electrodynamic
- Sound_emitter_-_Electromagnetic
- Sound_emitter_-_Horizontal_array
- Sound_emitter_-_Mechanical
- Sound_emitter_-_Operating_valve
- Sound_emitter_-_Plane_array
- Sound_emitter_-_Pneumatic
- Sound_emitter_-_Stacked_array
- Sound_emitter_array
- Sound_emitter_unit
- Sound_energy_flux
- Sound_field
- Sound_intensity
- Sound_level_A_B_or_C
- Sound_level_meter
- Sound_particle_velocity
- Sound_power
- Sound_power_level
- Sound_pressure
- Sound_pressure_level
- Sound_signal
- Sound_source
- Sound_spectrum
- Source_error
- Spaced_antenna_direction_finder
- Spaced_loop_direction_finder
- Spacer
- Space_wave
- Spacing_(Antenna)
- Spacing_error
- Span
- Spare_light_vessel_(GB)
- Spark_plug
- Spar_Buoy
- Specification
- Specific_fuel_consumption
- Spectral_concentration
- Spectral_distribution_curve
- Spectral_Luminous_Efficiency
- Spectrum
- Spectrum_analysis
- Spectrum_pressure_level
- Specular_Reflection_(2)
- Spherical_Buoy
- Spherical_divergence_loss
- Spherical_Reflector
- Spherical_wave
- Spindle_Buoy
- Splash-protected_enclosure_(or_machine)
- Split-phase_motor
- Split_key
- Spoiler
- Spoil_Ground_Mark_(or_Buoy)
- Spot_welding
- Spreader_beam
- Spread_of_bearings
- Spurious_emission
- Spurious_radiation
- Square_law_detection
- Square_law_detector
- Squirrel-cage_motor
- Stabilisation
- Stabilised_power_supply_(unit)
- Stability
- Stability_(2)
- Stabilization_(in_radionavigation)
- Stabilizing_pendulum
- Stainless_steel
- Stair_well
- Stair_well_(2)
- Stakeholder(s)
- Stand
- Stand-by_apparatus
- Standard_(radio)_atmosphere
- Standard_Illuminant
- Standard_Lamp
- Standard_propagation
- Standard_radio_horizon
- Standard_refraction
- Standard_refractive_modulus_gradient
- Standard_wave_error
- Standby_Lamp
- Standby_Light
- Standby_redundancy
- Star-delta_starting_(of_a_three-phase_motor)
- Starboard_Hand_Mark_(or_Buoy)
- Start-up_wind_speed_(of_a_wind-power_generator)
- Starter
- Starter_bar
- Starter_motor
- Starting_Electrode
- Starting_motor
- Star_chain
- State_of_charge
- Static_converter
- Static_load
- Static_pressure
- Station
- Stationary_battery
- Stationary_wave
- Station_battery
- Station_control
- Stator_(of_an_electric_machine)
- Stator_of_a_siren
- Steel
- Step-strobe_marker
- Stepped_Lens
- Stepping_motor
- Step_control_system
- Sterling_board
- Stiction
- Stiffener
- Stiffness
- Stiles-Crawford_Effect
- Stirling_engine
- Stirrup
- Storage
- Storage_(2)
- Storage_(air)_cylinder
- Storage_life
- Storage_tube
- Storey
- Store_room
- Straight-Filament_Lamp
- Strain
- Straits
- Stranded_conductor
- Stratification
- Stray_Light
- Stray_pick-up
- Stress
- Stringer
- Stripes
- Strobe
- Strobe_pulse
- Structural_member
- Strut
- Stud-link_chain
- Sub-refraction
- Subcarrier
- Submarine_(power)_cable
- Submersible_motor
- Subsidence
- Subsidiary_Light
- Substructure
- Subtense_Angle
- Suction_dredger
- Summing_point
- Sun_switch
- Superheterodyne_reception
- Superstructure
- Superstructure_(of_a_buoy)
- Superstructure_(of_a_buoy,_usually_lighted)
- Super_refraction
- Support_moment
- Suppressed_carrier
- Surcharge
- Surface-following_discus_buoy
- Surface_duct
- Surface_treatment
- Surface_wave
- Surge
- Surge_absorber
- Surveillance_radar
- Survival_wind_speed_(of_a_wind-power_generator)
- Sustainable
- Swell
- Swell_(2)
- Swing_-_angle
- Switch
- Switchboard
- Switchgear
- Switching_device
- Swivel
- Synchro
- Synchronisation_error
- Synchronism
- Synchronous_Lights
- Synchronous_motor
- Synchronous_motor_(2)
- Synchronous_speed_(of_an_electric_machine)
- Synchro_angle
- Synchro_resolver
- Systematic_error
- Systematic_errors
- System_deviation
- Tackle
- Tail_chain
- Tail_tube_(of_a_buoy)
- Tail_vane
- Tank_circuit_(G.B.)
- Tank_circuit_(U.S.A.)
- Taper_charge
- Tapper
- Tar
- Target_trail
- TB_cell
- Telemetry
- Template
- Temporary_Light
- Tender
- Tenderer
- Tendering_procedure
- Tension
- Tension-cracked_zone
- Terminal_(of_a_cell_or_battery)
- Test_boring
- Test_load
- Test_sample
- Thermal_Radiation
- Thermal_Radiator
- Thermal_relay
- Thermic_lance
- Thermocouple
- Thermocouple_(2)
- Thermoelectric_generator
- Thermoplastic
- Thrash_(chain)
- Three-phase_alternator
- Threshold_of_hearing
- Threshold_of_Illuminance
- Threshold_of_perception
- Threshold_signal
- Threshold_value_(or_alert_limit)
- Thrust_block
- Tidal_bore
- Tidal_cycle
- Tidal_energy
- Tidal_flat
- Tidal_range
- Tide
- Tide-actuated_generator
- Tide_-_Ebb_tide
- Tide_-_Flood_tide
- Tide_-_Half-tide
- Tide_-_High_tide
- Tide_-_Low_tide
- Tide_-_Neap_tides
- Tide_-_Spring_tides
- Tide_gauge
- Tide_Signals
- Tie
- Tile
- Timber
- Timbre
- Time_delay_switch
- Time_division_multiplex_(TDM)
- Time_switch
- Time_Switch
- Time_switch_(2)
- Time_to_alarm
- Tin
- Tip_speed_ratio
- Topmark
- Topmark_(2)
- Topping_lift
- Top_loaded_antenna
- Toran
- Toran_chain
- Toran_chart
- Toran_Compensating_receiver
- Toran_Confocal_emitters
- Toran_couple
- Toran_Reference_transmitter
- Torque
- Totally_enclosed_enclosure_(or_machine)
- Total_amplitude_of_oscillation
- Total_earthing_resistance
- Total_loss
- Total_polarization_error
- Total_System_Error_(TSE)
- Tower_(of_a_wind-power_generator)
- Tower_crane
- Tower_rock_light
- Towing
- Towing_winch
- To_bend
- To_bolt
- To_braze
- To_level_(surveying)
- To_level_off
- To_pour_(concrete)
- To_rivet
- To_solder
- To_strike_(formwork)
- To_strike_off
- To_weld
- Trailing_edge
- Transfer_function
- Transformation_of_electric_energy
- Transformer
- Transient_deviation
- Transition_Mark_(or_Buoy)
- Transmission
- Transmission_bridge
- Transmission_of_electric_energy
- Transmission_schedule
- Transmissivity
- Transmissometer
- Transmittance
- Transmitter_load
- Transmitter_power_gain
- Transponder
- Transponder_dead_time
- Transponder_reply_efficiency
- Tremie_hopper
- Trench_sheeting
- Trestle
- Triad
- Triangle_of_error
- Trichromatic_System
- Trickle_charge
- Trigatron
- Triggered_spark-gap
- Triggering
- Trigger_level
- Trimming
- Tristimulus_Values
- Troland
- Troposphere
- Tropospheric_radio_duct
- Tropospheric_wave
- Trough_(of_a_wave)
- True_motion_display
- True_position
- Truss_(of_a_roof)
- TR_cavity
- TR_cell
- TR_switch
- TR_switch_and_beam_switching_combined
- Tsunami
- Tube
- Tubular_Discharge_Lamp
- Tubular_Lamp
- Tuned_antenna
- Tungsten-Halogen_Lamp
- Turbulence
- Two-motion_selector
- Two-step_relay
- Two-stroke_engine
- Two-wire_repeater
- Two_buoys_mored_abreast_in_a_channel
- Two_buoys_mored_not_abreast_in_a_channel
- Types_of_service
- Type_DM_Raydist
- Type_E_Raydist
- Type_M_Raydist
- Type_N_Raydist
- T_antenna
- Ultrasonic_test
- Umbrella_antenna
- Undercutting_(of_cliffs)
- Underground_(power)_cable
- Undisturbed_soil_sample
- Uniformly_distributed_load
- Uniform_Diffuser
- Uninterrupted_duty
- Unipole_antenna
- Universal_motor
- Unlighted_Buoy
- Unwatched_Light
- Updating/Refresher_Training
- Upright
- Useful_Life_(of_a_lamp)
- Usual_range_of_a_sound_signal
- Utilisation_factor
- Utilisation_of_energy
- Vacuum_Lamp
- Valve_(of_an_internal_combustion_engine)
- Vaporiser
- Variable-pitch_blade
- Variable_auto-transformer
- Velodyne_integrator
- Ventilator_(passive)
- Ventilator_(powered)
- Vent_plug
- Vertex_plate
- Vertically_polarized_wave
- Vertical_antenna
- Vertical_beam_width
- Vessel_Technical_Error_(VTE)
- Vessel_Traffic_Management
- Vessel_Traffic_Service
- Vestigial_sideband
- Vibration
- Vibration_(2)
- Vibrator
- Vibratory_pile_driving
- Video_mapping
- Viscosity
- Visibility
- Visibility_meter
- Vision
- Visual_Photometer
- Visual_Range
- Void_ratio
- Voltage_(sensitive)_relay
- Voltage_stabiliser
- Voltage_standing-wave_ratio
- Volume_velocity
- Volute_of_a_siren
- VTSO_Position
- VTS_area
- VTS_authority
- VTS_centre
- VTS_Certification_Log
- VTS_Manager
- VTS_Operator
- VTS_Operator_Certificate
- VTS_Operator_Course_Certificate
- VTS_Personnel
- VTS_Sailing_Plan_(VTS_Route_Plan)
- VTS_services
- VTS_Supervisor
- VTS_Supervisor_Course_Certificate
- VTS_traffic_image
- Waling
- Wankel_engine
- Warble_tone
- Warping_end_(GB)
- Wash_primer
- Watch_buoy
- Watch_Buoy_(2)
- Water-cooled_engine
- Water-jet_protected_enclosure_(or_machine)
- Waterbar
- Watertight
- Water_and_oil_separator
- Water_jetting
- Water_level
- Watt-hour_meter
- Wave
- Wave-actuated_generator
- Wave-train
- Waveguide
- Wavelength
- Wavelength_(2)
- Wave_(2)
- Wave_antenna
- Wave_energy
- Wave_front
- Wave_height
- Wave_interference_error
- Wave_load
- Wave_number
- Wave_reflection
- Wave_surface
- Wave_tilt
- Wear-out-failure_period
- Weather-protected_enclosure_(or_machine)
- Web_(of_a_girder)
- Weight_tube
- Well-strobe_marker
- Wet_Dock
- Whip
- Whip_antenna
- Whistle
- Whistle_buoy
- Whistle_Buoy_(2)
- White
- Wick
- Wide_aperture_direction_finder
- Wide_aperture_Doppler_direction_finder
- Winch
- Wind-power_generator
- Wind-vane
- Windlass
- Wind_bracing
- Wind_energy
- Wind_energy_conversion_system
- Wind_load
- Wind_shear
- Wind_speed_duration_curve
- Winter_buoy
- Winter_Buoy_(U.S.A.)
- Winter_Light_(U.S.A.)
- Wire_rope
- Withdrawal
- Workability
- Work_barge
- World-Wide_Radio_Navigation_System
- World_geodetic_system_(WGS)
- Worst_case
- Wreck
- Wreck_Mark_(or_Buoy)
- Wrought_iron
- X-ray_test
- Yagi_antenna
- Yaw
- Zenith
- Zinc
- Zinc_chromate_primer