Above sea level

A method of drying natural gas.

Seaman's scornful name for any lead of a rope by which effort is lost or wasted.

Meddling or fooling around.

Ties used to tie up the sails when they are furled to the boom or yards.

Is singular for media and is the material...paper, wire, cellulose or a combination... from which the filter element is made and which does the actual filtration or separation.

To fill the seams of a vessel with pitch.

(1) Term describing the status of seamen, corresponding to rank in the case of officers. (2) A method of measuring a yacht's expected performance relative to another yacht while racing. Over the years many formulas have been experimented with, in order to ...

A labyrinth type filter having the active surfaces continuously splashed with oil. Most pollutants are absorbed by the oil which when circulated releases its pollutants, which sink by gravity to the bottom of the oil pan.

The tide with the least variation in water level, occurring when the moon is one quarter and three quarters full. The lowest high tide and the highest low tide occur at neap tide. The opposite is the spring tide.

A rail around the mast or on the bulwarks with holes for belaying pins to which lines or halyards are attached.

Polaris, the North Star, is visible in the northern hemisphere and indicates the direction of north. In the southern hemisphere the Southern Cross is used to find the direction of south.

Reversing the position of an object or line.

U.S. Commerce Department document, "Shipper's Export Declaration."

A small vessel fitted for towing.

At right angles to the centerline of the boat; rowboat seats are generally athwart ships.

Completely filled with water.

A stationary, spirally shaped passage that converts velocity head to pressure.

Abbreviation for "Over, Short or Damaged" Usually discovered at cargo unloading.

Man employed in unloading ships in harbour, or in taking a ship from one port to another. Paid "lump" sum for services.