A sinusoidal quantity having a frequency that is an integral multiple of the frequency of a periodic quantity to which it is related.

The change in the power available in the wind due to changes in the windspeed or velocity profile; the windpower profile is proportional to the cube of the wind speed profile.

A device for measuring the height of tide. It may be simply a graduated staff in a sheltered location where visual observations can be made, or it may consist of an elaborate recording instrument (sometimes called a marigraph) making a continuous graphic ...

A curved inlet section on an impeller.

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.

The cover of a scuttle-way or small hatchway which leads to to or from a store room, cabin of small craft, crew's quarters, the forecastle or fore peak.

Department of the Environment, Transport and the Regions (UK)

Ready Reserve Force

National Transportation Safety Board (U.S.)

A diagram showing the intensity of the radiation field in all directions from a transmitting radio or radar antenna at a given distance from the antenna.

Fast Rescue Boat

Lloyd's Register (classification society)

Standard cubic feet per minute., SCFM or scfm. Flow of free air measured at some reference point and converted to a standard set of reference conditions (e.g., 14.4 psia, 80

Magnuson Fishery Conservation and Management Act

Royal National Lifeboat Institution

A power source/generator that operates independently of or is not connected to an electric transmission and distribution network; used to meet a load(s) physically close to the generator.

The recipient (typically a bank) to whom a garnishee order has been delivered.

Confederation of European Union Shipmasters Associations

Isolated rocky peak rising from a sheet of inland ice.

In the US, a tax imposed by the federal government or state on the donor of a gift when the transfer.