n
A sample of fluid, tissue, or other substance that is withdrawn from a body cavity, cyst, or tumor.
n
(in the plural, medicine, underwater diving, with the) A severe condition caused by excessively quick decompression, causing bubbles of nitrogen to form in the blood; decompression sickness.
n
An instrument for compressing an artery (especially the femoral artery) or other part.
n
(underwater diving, informal) Decompression.
n
The restoration to atmospheric pressure of a person who has spent time under higher pressure (such as a diver).
n
(computing) A usually malicous file with a very high compression ratio, thus expected to consume a large amount of memory and disk space when decompressed.
n
A room used by divers to gradually readjust to normal air pressure.
n
(pathology) A sometimes fatal condition resulting from the formation of nitrogen bubbles in the blood and tissues, because of too rapid decompression, seen especially in deep-sea divers ascending rapidly from a dive. It is characterized by severe pains in the joints and chest, skin irritation, cramps, nausea, and paralysis.
v
To remove nitrogen from the body, by breathing nitrogen-free gases, before reascending from a deep-sea dive.
v
To reduce the pressure of something, especially of a gas inside a container; to depressurize
n
A chamber used for depressurization
n
(aviation, medicine) A situation where the ambient air pressure suddenly drops faster than the air in the lungs can escape, creating a risk of barotrauma to the lung tissue.
n
(underwater diving) A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.
n
(medicine, underwater diving) A mixture of helium and oxygen used as a breathing gas.
n
(technical diving, saturation diving, underwater diving) An electronic device that lowers the pitch of speech, to compensate for the high-pitched speech of someone breathing in a helium atmosphere breathing mix (ie. heliox, heliair, ...), so as to be understandable to other people.
n
(technical diving, saturation diving, underwater diving) Synonym of helium descrambler
n
(medicine) A fluid given intravenously over a period of time for medication or diagnostic purposes.
adj
(underwater diving) Exhibiting impaired judgment while scuba diving due to nitrogen narcosis.
n
The act or process of increasing pressure within a volume of space.
n
(underwater diving) A breathing apparatus that recycles expelled air, removing carbon dioxide and thus allowing extended use of a supply of air.
n
A method of long duration deep diving, which involves saturating body tissues with inert gas (helium), and bringing body tissues into equilibrium with the breathing mix (heliox).
n
(underwater diving) A mixture of helium, nitrogen, and oxygen used in deep diving as a breathing gas instead of air.
n
A device used in spacesuits and diving helmets to allow the wearer to equalize the pressure in their ears by performing the Valsalva maneuver inside the suit without using their hands to block their nose.
n
Alternative form of vapor lock [(mechanical engineering) A problem mostly affecting gasoline-fueled internal combustion engines, where the liquid fuel changes state from liquid to gas while still in the fuel delivery system, reducing the pump pressure and causing transient power loss or complete stalling.]
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