The International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978.

Intimate mixture of oil and water, generally of a milky or cloudy appearance. Emulsions may be of two types: oil-in water (where water is the continuous phase) and water-in-oil (where water is the discontinuous phase).

To windward, in the direction of the eye of the wind; toward the wind; in the direction from which the wind is coming

To stand at the mast and pull down on a halyard as another crewmate winches it in.

A navigational aid with a light that flashes about once per second.

Cargo which has been booked but does not arrive in time to be loaded before the vessel sails. See also "Windy Booking."

A solid wharf or structure built of stone along the edge of a harbor used for loading and offloading of cargo, and embarkation and disembarkation of passengers.

Sixteenth-century term for a sea distance at which high land could be observed from a ship. Varied between 14 and 22 miles according to average atmospheric conditions in a given area.

A wind shift that forces a boat to sail below its mean wind course.

To remove or disassemble gear after it is used.

A rope spliced into the end of a block and used for making it fast to rigging or spars. Such a block is called a tail-block.

To go aboard the vessel; to put onboard a vessel.

CFM flowing through the compressor inlet filter or inlet valve under rated conditions

When all the sails are shaking.

A boat is double banked, when two oars, one opposite the other, are pulled by men seated on the same thwart.

The degree to which all the forces on a boat are symmetrical so the vessel sails with just a slight weather helm.

A fix taken by visually observing the location of known landmarks.

A machine employing two or more stages.

To untie.

To repair, clean or paint the hull.