The smaller of two mating or meshing gears; can be either the driving or the driven gear.

Former name for the equipment of a vessel, and included the personnel.

A unit used to measure the barometric pressure of the atmosphere. 1 millibar equals 0.03 inches of mercury.

Hinged extension of the tiller which allows the skipper to control the tiller while hiking or sitting forward.

A position of a flag when lowered part way in salute (method of salute between vessels, like planes dipping wings).

Millions of cubic feet per 24 hour.

Slang term for a small swab made of rope and used for drying decks.

(1) To fill a space (room) with water; (2) A rising tide.

GMT for short. Greenwich Meridian Time, also known as Universal Time or Zulu time. A time standard that is not affected by time zones or seasons. It is the time used by navigators in celestial navigation.

A book with a record of every occurrence and incident concerning the ship.

Extending a sail using a whisker pole

Liquefied Natural Gas, or a carrier of LNG.

A sleeping berth or bed.

A warehouse authorized by Customs to receive duty-free merchandise.

Is the temperature at which water vapor begins to condense at atmospheric pressure. Is the same as dew point, but is related to atmospheric air only.

A person or firm, licensed by the treasury department of their country when required, engaged in entering and clearing goods through Customs for a client (importer).

A liquid piston compressor is a rotary compressor in which a vaned rotor revolves in an elliptical casing, with the rotor spaces sealed by a ring of liquid rotating with it inside the casing.

A two-masted vessel with both masts square rigged. On the sternmost mast, the main mast, there is also a gaff sail

The position of an object that lies off to one side of the vessel.

Country, island or territory the vessel visits.