In sailboat racing, to take to opposite tack of the rest of the fleet when behind, hoping that the wind will shift to your benefit.

When the distance between the wave crests is less than normal.

An instrument with a movable arm to plot a course on a chart

A nautical astronomical observation of the sun, moon, or a star, by which means a vessel's position can be determined. The sight was taken with a sextant at a specific time, determined by a chronometer.

The turbulent effect of air on the lee side of a sail when trimmed in too far.

A compartment forward where the chain cable is stowed.

A loss discovered before or at the time of delivery of a shipment.

A sudden squall of wind accompanied by lightning.

The water level used to record data on a chart. Usually the average low tide water level. It is the level below which depths on a chart are measured, and above which keights of a tide are expressed.

A receipt for goods issued by a carrier with an indication that the goods were damaged when received. Compare Clean Bill of Lading.

The pressure that would be produced by stopping a moving stream of liquid or gas.

Vertical frame components fitted at the corners of the container, integral to the corner fittings and connecting the roof and floor structures. Containers are lifted and secured in a stack using the castings at the ends.

is one in which a portion of the original system energy is dissipated and cannot be returned to the system through its own operation. The system and/or surroundings cannot be returned to their original state.

The highest unlicensed rating in the deck department who has immediate charge of all deck hands and who in turn comes under the direct orders of the master or chief mate or mate.

A filter element whose medium consists of a series of uniform folds and has the geometric form of a cylinder, cone, disc, plate ... Synonymous with "convoluted" and "corrugated".

A nautical guy, often a negative connotation.

Canvas, cloth, leather, tubing, rubber or other material placed around a line or cable to protect it from wear and abrasion

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

To move ahead swiftly. To move ahead of another vessel quickly when underway.

Without sufficient crew.