The forward part of the bow which overhangs the keel.

Compartment in which clothing for issue to crew is stowed.

A very high wind. Also called "Snotter"

A machine which aspirates gas which has already been compressed and delivers the same at higher pressure.

On square rigged ships, lines or cables attached to the ends of each yard; these are used to pivot (brace) the yards around the mast at different angles to the fore-and-aft line of the ship to make the most of the wind..

(1) The portion of an anchor that digs securely into the bottom, holding the boat in place. (2) The two triangular parts which make up a whale's tail.

Circular metallic elements that ride in the grooves of a piston and provide compression sealing during combustion. Also used to spread oil for lubrication.

A small naval sword worn by midshipmen or their equivalents when in full dress uniform.

A system of reefing a sail by partially furling it. Roller furling systems are not necessarily designed to support roller reefing.

Going sideways due to a current's set.

The method by which a racing yacht may object to the actions of a rival on the basis of a breach of the racing rules. A protest committee will hear both sides, and if the protest is upheld, the offending yacht may be penalized.

To develop a hole or break in the hull through which seawater could enter. Term originated from a sprung plank.

The total pressure measured from absolute zero ( i.e., from an absolute vacuum).

The pressure measured in a flowing stream (liquid or gas) in such a manner that no effect on the measurement is produced by the velocity of the stream.

The swell of a ship's hull around the propeller shaft.

A reference book named after the original author, Nathaniel Bowditch. Updated versions contain tables and other information useful for navigation.

A government office where duties are paid, import documents filed, etc., on foreign shipments.

On larger sailing vessels, the space between the foremast and mainmast where spare spars were stored.

A compressor belonging to the group of displacement reciprocating compressors.

An untidy loose end of a rope (or rags).