A device consisting of two dissimilar conductors with their ends connected together. When the two junctions are at different temperatures, a small voltage is generated.

The medium or material that does the actual filtering or separating. May be paper, wire mesh, special cellulose, inorganic plastic, or a combination.

Pockets in a sail where battens can be placed to stiffen the sail.

Six feet. Comes from the Dutch word "fadom" which was the distance between fingertips of outstretched hands.A unit of measurement relating to the depth of water or to the length of line or cable; one fathom is 6 feet or 1.83 meters

Assault upon a seaman, by Master, while at sea.

A short-sea vessel which transfers cargo between a central "hub" port and smaller "spoke" ports.

An instrument which measures the scattering function of particles suspended in a medium in order to determine the visual range through the medium. See visibility meter.

An absolute temperature scale. ((

Net Present Value

A line drawn to indicate both the direction and magnitude of a force, such as leeway or a current.

A small vessel fitted for towing.

A coil of tungsten wire suspended in a vacuum or inert gas-filled bulb. When heated by electricity the tungsten "filament" glows.

A sailboat with two masts. Generally, the shorter mizzen mast is aft of the main mast, but forward of the rudder post, while a similar vessel, the yawl, has the mizzen mast aft of the rudder post. The mizzen mast of a ketch is larger than that of a yawl.

Depositing filler metal on a surfsae by welding, spraying, or braze welding to increase resistance to abrasion, erosion, wear, galling. impact, or cavitation damage.

Master of a sea-going vessel. Certificated officer competent and qualified to be master of a sea-going vessel.

Said of anchor when it is under ship's forefoot, and cable is nearly up and down.

Month

Another expression for escalating.

The alignment of a building along a given axis to face a specific geographical direction. The alignment of a solar collector, in number of degrees east or west of true south.

Angled frames in the extreme forward or aft ends of a ship which form the sharp ends of the vessel's hull.