A large, flat bottomed boat used to carry the mud from a dredge.

: Regular ship shaped vessel, production ship. Positioned by anchors or dynamic positioning. Has its own propulsion machinery.

An automatic or manual device designed to control pressure, flow or temperature.

A strong tropical revolving storm of force 12 or higher. In the northern hemisphere hurricanes revolve in a clockwise direction. In the southern hemisphere these storms revolve counterclockwise and are known as typhoons.

A small flat boat, usually inflatable.

Vessel moves to a new area for a new season.

To capsize.

The direction of an object (with reference to you, your ship, another object).

Said of a vessel when the depth of water can be measured by the lead (within the 100 fathom curve).

Temperature at which condesation first occurs and moisture is formed.

The black line parallel with ship's keel marked on the inner surface of the bowl of a compass, indicating the compass direction of the ship's head.

The curved part of a ship's hull where the side and the flat bottom meet.

A number system used to describe wind forces and sea conditions from 0 for a flat calm to 12 for a hurricane

A line used for capsizing the sea anchor and hauling it in.

Amount of unused space in a ship or a hold by virtue of the irregular shape of the cargo.

Complete encirclement of a cleat, bollard, pin or winch by a line.

Anchor cable is caught around the fluke or an object is caught around the anchor .

A sound signal device (not necessarily mechanically operated).

Any object used to increase the drag of a boat and slow her down. Typically shaped like a parachute or cone opened underwater, drogues decrease a boat's speed in heavy weather. Also see sea anchor.

One which blows across a boat's side