The inside center strand of rope.

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.

The country in which the vessel is registered.

A law of chemistry and physics: the rate of diffusion of one substance in another is proportional to the negative gradient of the concentration of the first substance.

An air flow caused by a fan that draws air through the heat exchanger core in a uniform pattern to dissipate the sensible heat.

That part of a ship's bow where the hawse holes and hawse pipes are situated.

Any person or entity who, in a contract of carriage, undertakes to perform or to procure the performance of carriage by rail, road, sea, air, inland waterway or by a combination of such modes.

A gauge that measures air flow as a percentage of capacity, used in rotary screw compressors as an estimator during modulation controls.

A sailing ship with three to five masts, all of them square-rigged except the after mast, which is fore-and-aft rigged.

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

To heave in until the vessel is riding nearly over her anchor.

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.

To stand at the mast and pull down on a halyard as another crewmate winches it in.

The increase in pressure in the discharge header that develops as a result of flow after the pressure relief device opens

Permanent pip iron ballast specially shaped and placed along each side of keelson. Name is sometimes given to any iron ballast.

A tiller or a wheel generally installed on the bridge or wheelhouse of a ship to turn the rudder during manoeuvering and navigation. It is in fact the steering wheel of the ship.

(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 vessel discharges part of its cargo at anchor into a lighter to reduce the vessel's draft so it can then get alongside a pier.

Nautical name for an anchor. Originally, was a stone used as an anchor.

Having no sails up. In heavy weather the windage of the mast and other spars can still be enough to move the boat.