ACRONYM - MATERIAL SAFETY DATA SHEETS

Line attached to the bottom of the boom used to flatten the sail by pulling the boom down, and thus tightening the luff of the sail. (2) A line used for hauling down a jib or staysail.

The frames or timbers of a ship as they rise from the keel to form the shape of the hull.

The relative humidity of a gas (or air) vapor mixture is the ratio of the partial pressure of the vapor to the vapor saturation pressure at the dry bulb temperature of the mixture.

On square-rigged ships, a small light square sail set above the skysail in fair weather. If the sail were triangular, it would be called a Skyscraper.

A pneumatic percussive drill designed as a boring tool.

Filtration that occurs at the surface layer (as opposed to within the body depth) of the filter, and is accomplished by passing the material to be filtered over a grating, screen, sieve or membrane fabric with micro sized holes. The size of the holes in t ...

An ocean carrier company operating vessels not on regular runs or schedules. They call at any port where cargo may be available.

Polytetrafluorethylene.

(1) The points of the jaws of a boom or gaff where they embrace the mast. (2) The outer ends of the crosstrees.

(1) A longitudinal crack in a mast or other spar. (2) The shivers of a sail when sailing too close to the wind. (3) As a verb, to let it out.

Funds sent by one person to another as payment.

Two or more bearings are noted on the chart in order to determine the ship's position at the intersection of the two

Micrometer or one millionth of a meter; micron is sometimes represented in filtration by the Greek letter

The transverse partition between the cockpit and the cabin.

Words incorporated when signing under duress and not concurring entirely with import of document signed, and after stating grounds of non-concurrence.

Cargo-securing devices mounted in the floor of containers; allow lashing and securing of cargo.

When used in pricing terms such as "Ex Factory" or "Ex Dock," it signifies that the price quoted applies only at the point of origin indicated.

Wind-bound. When a vessel is kept in port by a head wind.

Country, island or territory the vessel visits.