A container designed with openings in the side and/or end walls to permit the ingress of outside air when the doors are closed.

The ratio and percent of the actual delivered capacity (measured at inlet temperature, pressure and gas composition) to the piston displacement.

To temporarily sew the ends of two ropes together for rendering through a block. Also to grip together parts of a fall to prevent running out. To marry strands to prepare for splicing.

Steel disc, that is dogged down over a porthole to secure against breakage of the glass and to prevent light from showing through.

A penalty charge against shippers or consignees for delaying the carrier's equipment beyond the allowed free time. The free time and demurrage charges are set forth in the charter party or freight tariff.- See also Detention and Per Diem.

In transit, or in passage.

A large foresail which extends aft behind the mast.

Said of wind when exactly ahead; and of another vessel when her fore and aft line coincides with observer's line of sight.

A pilot with a license stating that they are qualified to guide vessels in a particular area.

To fake line back and forth on deck.

One of the large square openings in the deck of a ship through which freight is hoisted in or out, and access is had to the hold.

A sail set forward of the foremast on the headstay; a foresail

Time saved, reward for quick turnaround in dry cargo only.

The permitted increase in pressure developed after the valve has opened. Usually expressed in percentage, ie.; 3% accumulation (A.S.M.E. Code, Section I). Flows through safety/relief valves are officially determined at these overpressure conditions.

A wind shift that allows a boat to sail above its mean wind course.

A tube with a narrow throat (a constriction) that increases the velocity and lowers the pressure of the liquid passing through it, creating a partial vacuum immediately after the constriction in the tube. The vacuum created has a sucking effect, and a ven ...

A short-sea vessel which transfers cargo between a central "hub" port and smaller "spoke" ports.

The general name for ropes, blocks and tackles, tools, etc. (things).

A wind coming from the east.

Machines in which air or gas is compressed by the mechanical action of rotating vanes or impellers imparting velocity and pressure to the flowing medium. (Raise the pressure of the air by converting the energy from the velocity of the air to pressure.)