A small freshwater mollusk that was accidentally introduced to North American waters via ballast water from a transoceanic vessel. The zebra mussel has had significant negative economic and ecological effects: It clogs water intake pipes and attaches to a ...

A beam attached to the top of the floors to add strength to the keel on a wooden boat.

Western Truck Lines.

Similar to a centerboard, except that it is raised and lowered vertically in a trunk rather than pivoted. Like a keel, daggerboards are used to reduce leeway by preventing a sailboat being pushed sideways by the wind.

A mast that is stepped (placed) on the keel at the bottom of the boat rather than on the deck. Keel stepped masts are considered sturdier than deck stepped masts.

A drive arrangement for power transmission to compressors.

The portion of the deck between the forecastle and quarterdeck of a sailing vessel.

(1) A fore-sail flying above and forward of the jib, usually seen on bowsprit vessels. (2) A foresail used on yachts similar to a genoa, but cut narrower, with its leech not overlapping the mainsail, and a higher clew.

Measuring point for compressor acceptance test. Amount of condensate collected in the intercooler.

[meaning]

General Average

A hand held rock drill worked by compressed air.

A material made of tarred hemp or manila rope fibers, used for caulking seams of decks and sides of a wooden ship in order to make them watertight.

Prefix before a ship's name to indicate that she is a steamship.

Code of minimum conditions for the carriage of cargo under a bill of lading.

Used by some seamen to describe St. Elmo's Fire.

Abbreviation for "Transportation and Exportation." Customs form used to control cargo movement from port of entry to port of exit, meaning that the cargo is moving from one country, through the United States, to another country.

A large piece of fabric designed to be hoisted on the spars of a sailboat in such a manner as to catch the wind and propel the boat.

Fit and beautiful (describing a boat)

See "Free of Particular Average."