Abbreviation for "Over, Short or Damaged" Usually discovered at cargo unloading.

To fake line back and forth on deck.

A measure of the amount of "spin" (or rotation) in the atmosphere.

An object bears so and so, when it is in such a direction from the person looking. To bear down upon a vessel, is to approach her from the windward.To bear up, is to put the helm up and keep a vessel off from her course, and move her to leeward.To bear aw ...

Centre for Environment, Fisheries and Aquaculture Science

Fishing Vessel

The tide with the least variation in water level, occurring when the moon is one quarter and three quarters full. The lowest high tide and the highest low tide occur at neap tide. The opposite is the spring tide.

Salt Water Departure Draft

A labyrinth type filter having the active surfaces continuously splashed with oil. Most pollutants are absorbed by the oil which when circulated releases its pollutants, which sink by gravity to the bottom of the oil pan.

Nautical equivalent of ceiling

An instrument that can be modified or cancelled at any moment without notice to and agreement of the beneficiary, but customarily includes a clause in the credit to the effect that any draft negotiated by a bank prior to the receipt of a notice of revocat ...

Foreign Vessel

A Customs document permitting the holder to temporarily carry or send merchandise into certain foreign countries (for display, demonstration or similar purposes) without paying duties or posting bonds. Any of various Customs documents required for crossin ...

Merchant shipping notice 'M- Notice',UK

Barometer in which pressure is determined by balancing air pressure against the weight of a column of mercury in an evacuated glass tube.

Family income assurance in which the assured may, if he or she chooses, increase premiums in line.

International Union of Marine Insurance

The distance a boat can move around its anchor. Swinging room is important because if other boats or objects are within a boat's swinging circle they may collide.

The change in the power available in the wind due to changes in the windspeed or velocity profile; the windpower profile is proportional to the cube of the wind speed profile.

A compressor belonging to the group of displacement reciprocating compressors.