A line with a weight on the end used to measure depth. The lead is dropped into the water and marks on the line are read to determine the current water depth. The lead usually has a cavity to return a sample of the bottom type mud, sand, etc.

Same as "grab rope" (rope).

A party responsible for the payment as evidenced by the given instrument. Under letters of credit, the payer is the party on whom the draft is drawn, usually the drawee bank.

A complete listing of all cargo entering the country of discharge. Required at all world ports and is the primary source of cargo control, against which duty is assessed by the receiving country.

To make headway when there is no apparent wind.

Circular blocks in the shrouds or stays to adjust tension.

Limber hole of a ship.

Direction or bearing of an object relative to a boat's heading.

A unit of work, being the work done in one hour at the rate of 1,000 watts.

An end closure for the filter case or bowl that contains one or more ports.

A coupling device which consists of a spring loaded shutoff valve and a positive locking mechanism. It is used to connect tools, hoses and other accessories. Also known as Quick Disconnect.

Time period from when a compressor loads until it unloads.

The porous material contained inside the filter to (a) separate the contaminants from the incoming air, gas, or liquid. (b) separate the liquid from the gas. Filter medium is usually made of paper, wire mesh, special cellulose, or a combination.

Fog over land caused by condensation of vapor in the air above cooler ground.

Order to pick up goods at a named place and deliver them to a pier. Usually issued by exporter to trucker but may apply to a railroad, which completes delivery by land. Use is limited to a few major U.S. ports. Also known as shipping delivery order.

An order to commence ship's work.

To remove a sail.

To leak; take in water.

Iron or wood pin fitted into racks, around which lines can be belayed or secured.

Is the term used for average atmospheric air at sea level in a temperature zone where it contains some moisture. It is defined in the ASME Test Code For Displacement Compressors as being at 14.696 psiA, 68