A light triangular or quadrilateral sail set over a gaff.

A device attached to a safety or safety relief valve that prevents it from opening at the set pressure.

An unusually strong wind. In storm-warning terminology, a wind of 34 to 47 knots (39 to 54 miles per hour or 62-87 kilometers per hour).

A development of the carrack, with the high forecastle eliminated.

In larger sailing warships, the walk built out from the admiral's or captain's cabin and extending beyond the stern. Often decorated with carved and gilded work, they were also covered and enclosed with elaborate glass windows.

Sailor's term for soot or ashes which sometimes fell into food while it was being cooked.

A prisoner sold in the slave market. He was forced to serve in the war galleys, where he pulled on one of the oars.

A form of wear in which seizing or tearing of the gear or bearing surface occurs.

A unit of volume. A US gallon has 231 cubic inches or 3,785 liters.

A frame used to support the boom when the sail is down.

The process of coating one metal with another, ordinarily applied to the coating of iron or steel with zinc. The chief purpose of galvanizing is to prevent corrosion.

Circular iron band used to hold a bowsprit on the stem of a sailing vessel.

A board with cleats, forming a bridge reaching from a gangway of a vessel to the wharf.

A line rove through a single block secured aloft.

Shore crane with a wide span.

The first plank on the outer hull of a wooden vessel next to the keel. In steel ships, the plating next to the keel, or what is known as strake A.

The strake next to the keel (running fore and aft).

On a square-rigged ship, a tackle used for hoisting casks and provisions.

Slang for the leg irons which were used to secure men under punishment.

A fluid (as hydrogen or air) that tends to expand indefinitely. Is one of three basic phases of matter.