A metal fitting with an arm that uses a spring to close automatically when connected to another object.

Froth of sea foam.

An official signature or seal affixed to certain documents by the consul of the country of destination.

A single outlet or limited number of outlets in a building used to connect tools or equipment to the air system.

A sudden and violent gust of wind.

On a wooden vessel, the outermost deck plank covering the gunwale. also called Covering Board

In maritime warfare, a declaration published by a power forbidding sea-borne trade with an enemy.

That part of the water which is diverted from the main stream of a current and as a result flows in the opposite direction.

A stationary element between stages of a multistage centrifugal compressor. It may include guide vanes for directing the flowing medium to the impeller of the succeeding stage. in conjunction with an adjacent diaphragm, it forms the diffuser surrounding t ...

A vessel's station bill showing duties of crew.

The wind direction indicator on the masthead.

The place at which a shipment is received by a carrier from the shipper.

The point (speed of sound) at which air flow through an orifice can not increase regardless of pressure drop.

A combination of one or more blocks and the associated tackle necessary to give a mechanical advantage. Useful for lifting heavy loads.

The North Star; visible in the northern hemisphere and indicates the direction of north. In the southern hemisphere the Southern Cross is used to find the direction of south.

Railcars grouped in a train by destination so that segments (blocks) can be uncoupled and routed to different destinations as the train moves through various junctions. Eliminates the need to break up a train and sort individual railcars at each junction.

The location from which the boat is steered, usually in the middle or at the stern of the boat.

An anchor which has become entangled with some object on the bottom, or, on weighing, has it's rode or chain wound around its stock or flukes.

Articles packed so that one rests partially or entirely within another, thereby reducing the cubic-foot displacement.

Waterproof clothing.