Modifying or supplementary action (also, the effect of such action) intended to improve performances with respect to some specified characteristics.
Note:: Usually the addition of some form of damping, which involves the addition of an oscillation damper, to change the apparent characteristics of the load.
Reference: I.E.C. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Celsius (previously Centigrade)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM