Bareboat (Method of chartering of the ship leaving the charterer with almost all the responsibilities of the owner.)

A method of preventing the ends of a line from unlaying or fraying by turns of small stuff, stout twine or seizing wire with the ends tucked.

The person who is in charge of a vessel and legally responsible for it and its occupants.

The direct sailing line in which a racing mark or buoy can be fetched while sailing the desired course

Shifting the moving block of a tackle from one place of attachment to another place farther along to give more advantage.

The compass points of North, East, South and West. Intercardinal or half-cardinal points are Southeast, Southwest, Northwest and Northeast

Is the pressure existing at a given temperature in a closed vessel containing a liquid and the vapor from that liquid after equilibrium conditions have been reached. It is dependent only on temperature and must be determined experimentally.

Metal or wooden peg inserted in gunwale of a boat for an oar to heave against when rowing without crutch or rowlock.

The ship's water closet (toilet or wash-room). The upper edge of a quadrilateral sail.

Space between the floor of holds and the bottom of the ship.

The line by which a boat is connected to a mooring buoy; a short rope hanging from a spar having at its free end a spliced thimble or a block. Sometimes called "Pennant".

Away from land, toward the water.

When compressed air is forced through a submerged perforated hose or pipe. Some applications include; ice prevention, reduction of salt intrusion, underwater basting, pneumatic breakwaters and general mixing and agitation

Standard pressure and temperature. See standard air.

A thermal expansion valve.

A pump which is used to deliver air to the aquarium. The pump pushes air through silicon tubing and to air stones or other aquatic decor. They are also an essential for UGF's (undergravel filters). An air stone is placed in each clear tube. When the air b ...

A term indicating a temperature relationship between two temperatures or temperature variation between two points.

A mythical creature, half human and half fish.

A type of anchor with a heavy inverted mushroom shaped head. Mushroom anchors are used to anchor in mud and other soft ground.