A term used to describe the hot gas pressure on the outlet side of the refrigeration compression.

Rolling a vessel, that is slightly ice-bound, so as to break the surface ice around her. May sometimes be done when a vessel is lightly aground, but not ice-bound.

A sighting taken for celestial navigation at noon, when the sun is at its highest point in the sky.

A single turn of rope when a rope is coiled down.

Cargo which has been booked but does not arrive in time to be loaded before the vessel sails. See also "Windy Booking."

Intimate mixture of oil and water, generally of a milky or cloudy appearance. Emulsions may be of two types: oil-in water (where water is the continuous phase) and water-in-oil (where water is the discontinuous phase).

Sling of various types used for lifting vehicles on to and off general cargo ship.s

Costs that vary directly with the level of activity within a short time. Examples include costs of moving cargo inland on trains or trucks, stevedoring in some ports, and short-term equipment leases. For business analysis, all costs are either defined as ...

A small portable compass.

The air compressor continues to run, usually at full RPM, but no air is delivered because the inlet is either closed off or modified, not allowing inlet air to be trapped.

The degree to which all the forces on a boat are symmetrical so the vessel sails with just a slight weather helm.

(1) Said of ship's head when it moves away from wind, especially when tacking. (2) To discharge a crew and close Articles of Agreement of a merchant ship.

A bulkhead that will not let water pass from one side of it to the other.

A life-threatening condition where there is loss of body heat; the greatest danger for anyone in the water. As the body loses its heat, body functions slow down, and this can quickly lead to death.

U.S. Customs' automated program under AMS. It allows for electronic reporting of inbound (foreign) cargoes in the U.S.

The Captain of a vessel. Highest officer aboard ship. Oversees all ship operations. Keeps ships records. Handles accounting and bookkeeping. Takes command of vessel in inclement weather and in crowded or narrow waters. Handles communications.

A fabric bag through which a gas stream is passed for the removal of particulate matter.

A salt or ester of carbonic acid.

A boat is double banked, when two oars, one opposite the other, are pulled by men seated on the same thwart.