A trailer or semi-trailer with no sides and with the floor of the unit close to the ground.

A small channel or opening in a filter medium which allows passage of gas.

The measurement of the angle between the bottom of a boat and its widest beam. A vessel with a 0

A transportation arrangement in which truck trailers with their loads are moved by train to a destination. Also known as Rail Pigs.

On a square-rigged ship, a light weather sail set next above the topgallant-sail in fair weather.

An arc of a circle in which certain types of navigational lights known as sector lights are visible.

A name usually given to a State body having control or regulation of public utilities.

Prepare for going to sea, extra lashing on all movable objects.

To ascertain the proper course to be steered to make the desired point or port. Shark's mouth

Pipe lines to a compartment for smothering a fire by steam or by a chemical.

A white navigation light carried by vessels under way at night to indicate their presence and give an indication of their course.

Are lines that supply equipment from sub headers.

The officer in charge of the watch.

Very small wooden pail having one stave prolonged to form a handle. Used as a bailer in a boat.

The manner in which a shipment moves; i.e., the carriers handling it and the points at which the carriers interchange.

Flat bottomed vessel with a shallow draught.

Long bars or bolts with a padlock on the end, on which iron shackles could slide, which were used on board ship to confine the legs of prisoners.

A line used to control the tension along a sail's luff in order to maintain proper sail shape.

All naval officers with the rank of rear admiral (or its equivalent) and above.

On a square-rigged ship, the act of lowering a spar or yard to the deck.