Overhanging part of a vessel's stern. The area of the upper deck of a ship that is nearest the stern.

A short oar. To scull, is to impel a boat by one oar at the stern.

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.

An electrical current that periodically reverses its direction. Standard in US and Canada is 60 cycles per second. Europe and other countries is 50 cycles per second.

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.

Away from land, toward the water.

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

Insufficient number of crew; shorthanded.

The line where the water comes to on the hull of a boat. Design waterline is where the waterline was designed to be, load waterline is the waterline when the boat is loaded, and the painted waterline is where the waterline was painted. Actual waterline is ...

the attraction to, and retention of particles in, a filter medium by electrostatic forces, or by molecular attraction between the particles and the medium.

A mat of fibers that provide a barrier to particles entrained in the flow of air or gas.

A spring line from the stern of a boat to mid ships to stop forward movement

Oscillations of the sea caused by wind blowing along the surface and moving in the direction from which the wind blows.

Inlet butterfly valve. These are fitted on the inlet of most types of compressor and the valve opens and closes to throttle the air flow. However, the term IBV is usually associated with turbo compressors.

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

The ability of a seaman to foretell weather by the appearance of the sky, change of wind direction, etc. was handed down in the form of proverbs. Some well known are:

A thermal expansion valve.

On the lee side of an object, protected from the wind.

A journey made at sea by a vessel, usually including both the outbound and homebound passages.