A fixed artificial navigation mark that can be recognised by its shape, colour, pattern, topmark or light character, or a combination of these.
It may carry various additional aids to navigation.
Note: 1 This term is not commonly used when the navigation mark can be classified as a lighthouse.
Note: 2 The terms light, light beacon and lighted beacon refer to a beacon that carries a signal light.
Note: 3 The terms unlighted beacon and unlit beacon refer to a beacon that does not carry a signal light.
Please note that this is the term as it stands in the original IALAInternational Association of Marine Aids to Navigation and Lighthouse Authorities - AISM Dictionary edition (1970-1989)