Nautical mile

Nautical mile

A unit of distance designed to equal approximately 1 minute of arc of latitude, 6080. 20 ft. ; approximately 1. 15 times as long as the statute mile of 5280 ft.

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Part of Speech: noun
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Industry/Domain: Sports
Category: Scuba diving
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nautical mile

Weather; Meteorology

The length of one minute of arc along any great circle on the earth's surface. Since this actual distance varies slightly with latitude, a nautical mile by international agreement ...

nautical mile

Natural environment; Coral reefs

The length of a minute of arc, 1/21,600 of an average great circle of the Earth. Generally one minute of latitude is considered equal to one nautical mile. The accepted United ...

nautical mile

Engineering; Electronic engineering

A nautical unit of linear measure equal to 1.852 kilometers (1.1508 statute miles).

nautical mile

Sports; Surfing

The marine term for a mile, which equals approximately 1. 2 statute miles on land. Wind speed and other velocities are always termed as knots when used in marine and aerial ...

nautical mile

Fishing; Marine fishery

International unit of distance equal to 1,852 meters or 6,067 feet.

nautical mile

Boat; General boating

A distance of 1.852 kilometres (1.151 mi). Approximately the distance of one minute of arc of latitude on the Earth's surface. A speed of one nautical mile per hour is called a ...

immersion hypothermia

Sports; Scuba diving

The lowering of body temperature when a diver is fully immersed in cold water without proper thermal protection.

hookah

Sports; Scuba diving

A surface-supplied compressed air apparatus, for use in shallow diving in calm waters. The air is delivered to one or more divers through a long hose.

rebreather

Sports; Scuba diving

A closed-circuit system which filters exhaled air, then recirculates it for rebreathing by the diver; requires special training and maintenance.

high pressure nervous syndrome (HPNS)

Sports; Scuba diving

A condition which results from breathing Helium under high pressures. Early symptoms of HPNS are sometimes seen as shallow as 300FSW but more commonly over 600FSW. The severity ...