To collide with a vessel head on.

A wind coming from the southwest

Shortening of the old term "boatswain," an unlicensed member of the crew who supervises the work of the deck men under direction of the first mate.

Foam or spray which is thrown out under the bow of a ship when she is under way. If fast moving with a lot of spray being thrown out, the vessel is said to have "A bone in her teeth".

The theoretical speed that a boat can travel without planing, based on the shape of its hull This speed is 1.34 times the length of a boat at its waterline. Also known as hull speed.

A weather prediction.

Flat steel stock of various thicknesses used in the construction of a ship to form the sides and decks.

One that has the right-of-way and should maintain her course and speed during a crossing or overtaking situation, unless a collision appears imminent. (Was formerly called "the privileged vessel.")

See Door-to-Door.

Polyethylene or similar substance heat-treated and shrunk into an envelope around several units, thereby securing them as a single pack for presentation or to secure units on a pallet.

Movement of crest of a progressive wave. Can also refer to radio waves.

A legal paper or license of a boat or its captain.

The Greek god of the sea.

The highest temperature at which well-defined liquid and vapor states exist.

A desiccant most commonly used in heat regenerative type dryers.

A navigable route on a waterway, usually marked by buoys. Channels are deep enough for ships or boats to navigate without running aground.

Navigation rules governing waters outside designated demarcation zones

Turning out all hands on board ship in the morning, or calling the watch for duty on deck.

British standard pipe tapered.

Nickname for a dinghy