The bearing of an object after magnetic variation has been considered, but without compensation for magnetic deviation.

A large foresail or jib that overlaps the mainsail. Also known as a genny. Can be expressed in percentages of overlap, e.g. 150 Genoa is 50% overlap of the mainsail.

The total rate from the point of origin to final destination.

Combination minimum pressure valve and check valve.

The action of letting go the sheets of a sailing vessel, thus spilling the wind and reducing the forward motion of the boat.

To haul in or bind something together in order to create more space.

Bulk Carrier or Motorcar Carrier

A lighted or unlighted fixed (non-floating) aid to navigation that serves as a signal or indication for guidance or warning. (Lights and daybeacons both constitute "beacons.")

The operation of taking a sounding with the hand lead (to find bottom).

a circular donut-shaped buoy designed to support a person in the water. It is attached to the vessel with a (floating) line so that the person can be hauled back to the boat.

(1) In good condition. (2) To adjust to proper shape or size.

A barge equipped with tracks on which up to about 12 railroad cars are moved in harbors or inland waterways.

Nickname for a ship's cooper.

A lubricating oil made with synthetic base stocks.

The top of a mast.

Broadly, insurance covering loss or damage of goods at sea. Marine insurance typically compensates the owner of merchandise for losses sustained from fire, shipwreck, etc., but excludes losses that can be recovered from the carrier.

The ring bolted to the upper end of the shank of an anchor and to which the bending shackle secures.

The part of the rotating element of a dynamic compressor that imparts energy to the flowing medium by means of centrifugal force. It consists of a number of blades mounted so as to rotate with the shaft.

A small crane that projects over the side of the boat to raise or lower objects (such as smaller boats) from or to the water.

Board, bearing instructions, that comes to a wrecked ship with a life-saving rocket line.