Small struts or spars extending toward the sides from one or more places along the mast. The shrouds cross the end of the spreaders, enabling the shrouds to better support the mast. Also known as crosstrees in older vessels.

The quantity of heat required to raise the temperature of a unit weight of a substance by one degree.

The internal duct and filter medium support

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

A type of journal bearing in centrifugal air compressors.

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.

A sudden and violent gust of wind.

Steel section running along the length of each bottom edge of a shipping container giving its structural strength.

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.

On steam vessels has responsibility for the boilers, on diesels, the evaporators and the auxiliary equipment.

The opening between the jib and the mainsail. Wind passing through this opening increases the pressure difference across the sides of the mainsail, helping to move the boat forward.

Abbreviation for "Bales."

To put out a mooring, hawser or line from a ship to a point of attachment outside her.

A structure of heavy timbers placed between ground ways and cradle to support the ship during launching.

Is a compression in which the temperature of a gas remains constant.

A raised portion of the hull forward of the cockpit intended to prevent water entering.

Starboard.

The rod connecting the disc to the lever on a valve.

The mount and housing for the compass, usually located on the wheel's pedestal.

Large ships dating back to the 17th century typically with three masts carrying rectangular sails mounted on horizontal spars called yards. A sailing-ship rig with rectangular sails set approximately at right angles to the keel line from horizontal yards.