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.)

To wrap a small line around another.

(1) Order to men at the mast to extend themselves at intervals along a yard. (2) To keep a vessel at a certain place until a specified time has elapsed.

Numbers of large pieces of floating ice that have come together and lie more or less in contact.

The adjustment of the standing rigging, the sails and the hull to balance the boat for optimum performance.

A windlass or capstan drum.

To attain headway (to get going or pick up speed).

A charge for services performed in connection with floating elevators.- Charges assessed for the handling of grain through grain elevators.

An instrument for measuring, testing, or registering.

A phrase preceding the signature of a drawer or endorser of a negotiable instrument; signifies that the instrument is passed onto subsequent holders without any liability to the endorser in the event of nonpayment or nondelivery.

Merchant Navy nickname for seaman whose turn of duty it is to keep the mess clean.

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

An officer who attends to the berthing, etc., of ships in a harbor.

Cloths hung on the lee side of a berth to keep one from rolling out of their bunk

A crack or hole that accidentally admits a gas or lets it escape.

The transaction or interchange that occurs at the time a container is received by a rail terminal or water port from another carrier.

Sailing beyond a racing mark or buoy whereby you sail a greater distance

Change direction so as to point closer to where the wind is coming from. The opposite of falling off.

The amount by which magnetic variation changes up or down each year in a particular area. The annual increase or decrease is printed in the compass roses on each chart and may make a significant difference over a number of years.

An item such as a nail, screw, rivet or other device used to fasten objects together.