A blend of gases tailored to replace the normal atmosphere within a container.

- A hitch used for bending a line to a spar, which if tied properly, won't slip. The end of the line is passed around the spar and then passed a second time around so it rides over the standing part. Then it is carried across and up through the bight.

A vertical support for guardrails and lifelines.

A change made either in the route of a shipment in transit (see Reconsignment) or of the entire ship.

The forward part of a boat's main deck.

The study of the earth's waters.

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.

To change a boat's direction, bringing the bow through the eye of the wind.

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

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.

Machine which receives dry bulk cargo. It is used for stowing sugar,ores and minerals in the holds.

Lying nearly head to wind and stopped, and maintaining this position by trimming sail or working engines.

A dining room on a ship.

The upward curvature of the keel towards the bow and stern.

The pressure at which a pressure operated valve begins to pass a gas.

A compressor belonging to the group of displacement reciprocating compressors.

A type of journal bearing in centrifugal air compressors.

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

Compartment in which clothing for issue to crew is stowed.