Small, steep disorderly waves at rapid intervals.

Used in meteorology to describe boundaries between hot and cold air masses. This is typically where bad weather is found.

Heat exchangers for removing the heat of compression between stages of a compressor.

Thin sheets of copper applied to the hull of a wooden ship below the waterline to prevent the toredo worm eating the planks, and also to limit the growth of weed, barnacles or other marine life.

Polytetrafluorethylene.

To throw an oar out of the rowlock, and raise it perpendicularly on its end, and lay it down in the boat, with its blade forward.

To leave; to push a boat away from a pier or vessel's side.

Seamen who worked on the masts and yards of square-rigged ships.

Transverse members fitted to the bottom side rails of a container, which support the floor.

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.

An old seafaring dish made of boiled oatmeal seasoned with salt, sugar, and butter.

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.

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.

Country, island or territory the vessel visits.

Straps to hook your feet under in cockpit when hiking out.

Seaman who was born aboard a warship. As this was once considered to be one of the essentials of the perfect seaman, it has long been a complimentary term.

A rest for a cargo-boom when lowered for securing for sea.

Old expression for the engraving of the wind-rose on charts.

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

Attempting to import merchandise into a country at a price less than the fair market value, usually through subsidy by exporting country.