Alpha flag

Alpha flag

An International maritime signal flag, meaning, 'Diver down, keep clear'.

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Industry/Domain: Sports
Category: Scuba diving
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alpha flag

Sports; Scuba diving

An International maritime signal flag, meaning, 'Diver down, keep clear'.

flag

Tobacco; General tobacco

An alternative to a cap that involves shaping the wrapper leaf at the head of the cigar so that it secures the wrapper in place. Sometimes a flag can be tied off in a pig-tail or ...

flag

Computer; Software; Software engineering

A variable that is set to a prescribed state, often "true" or "false," based on the results of a process or the occurrence of a specified condition.

flag

Engineering; Electronic engineering

1. A piece of information added to a data item that gives information about the data item. 2. A bit added to a character or word to delineate a field boundary. 3. An indication ...

flag

Telecommunications; General telecom

In data transmission or processing, an indicator, such as a signal, symbol, character, or digit, used for identification. Note: A flag may be a byte, word, mark, group mark, or ...

flag

Plants; Plant pathology

Isolated, wilted or necrotic branch with dead leaves attached.

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 ...

breath-hold diving

Sports; Scuba diving

Diving without life support apparatus, while holding one's breath.

windward

Sports; Scuba diving

A point or side from which the wind blows; in the direction from which the wind blows; as opposed to, leeward.

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