Half of a sphere. On the globe hemispheres are used to describe the halves of the earth north or south of the equator.

Contraction for Empty Repositioning. The movement of empty containers.

A fitting holding a boom or gaff to the mast.

imposes a 50-percent tariff on maintenance and repair work done on U.S.-flag vessels in foreign shipyards. Also, U.S.-flag vessels must either be built in the United States or have been a U.S.-flag vessel for at least 3 years to be eligible to carry prefe ...

Meddling or fooling around.

The natural tendency of a sailboat to come up into the wind. The helm must be held over to keep the boat from coming up

Seaman's scornful name for any lead of a rope by which effort is lost or wasted.

A small vessel fitted for towing.

Filter rating indicating the approximate particle size for which the majority will not pass through a given filter. It is generally interpreted as meaning that 85% of the particles of size equal to the nominal filter rating will be retained by the filter.

A penalty charge against shippers or consignees for delaying carrier's equipment beyond allowed time. Demurrage applies to cargo; detention applies to equipment. See Per Diem.

To attach a line to something so that it will not move.

A device to record temperature in a container while cargo is en route.

An instrument for measuring, testing, or registering.

a wind coming from the northeast

To fill the seams of a vessel with pitch.

Dangerously steep and breaking seas due to opposing currents and wind in a shallow area.

An assigned area in which containers are prepared for loading into a vessel, train, truck, or airplane or are stacked immediately after discharge from the vessel, train, truck, or airplane.

A labyrinth type filter having the active surfaces continuously splashed with oil. Most pollutants are absorbed by the oil which when circulated releases its pollutants, which sink by gravity to the bottom of the oil pan.

A light sail, such as a spinnaker, used to make the most of light following winds.

A genoa jib. A large jib that overlaps the mast.