Pieces of ice, about the size of a small house, that have broken off a glacier.

When rope comes aboard a vessel and is put to use, it is called line, although some still call it rope if it is over one inch in diameter.

A dimensionless flow parameter, ( Jnr/m), in which J is a significant dimension, often a diameter, n is the fluid velocity, r is mass density, and m is dynamic viscosity, all in consistent units.

The part of a block which is opposite the swallow, which is where the line enters.

(1) Floating, but at mercy of wind and sea. (2) Piercing the hull with a projectile. (3) Taking in sail during a calm.

Loan issued against some security

Abbreviation for "Trailer Load."

A block and tackle attached to the boom and the deck to prevent the main from gybing when sailing downwind

A heavy longitudinal timber that angles upward from the stern to support the underside of the fantail.

A pattern or template. Also a shape of metal or wood over or in which an object may be hammered or pressed to fit.

A government document which permits the "Licensee" to engage in the export of designated goods to certain destinations.

The pressure which overcomes the total resistances in a system. It includes all losses as well as useful work.

A round wood plug inserted in a hole to cover a nail, screw, or bolt.

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

Surface resistance to relative motion, which slows down movement and causes heat.

A Latin term meaning "In proportion."

Closing small leaks in a vessel's underwater body by drawing a sail, filled with oakum, underneath her.

An instrument that uses sound waves to measure the distance to the bottom.

Insoluble material suspended in the lubricating oil. This material may come from contamination or oil degradation.