10 Terms
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Scuba diving
Underwater diving in which the diver uses scuba gears to breathe underwater.
Industry: Sports
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Scuba diving
arrhythmias
Sports; Scuba diving
Irregularities in the rhythm and rate of the heart, particularly dangerous to divers due to the underwater environment.
oxygen
Sports; Scuba diving
Often seen as using the chemistry abbreviation 02, gas vital for all life on this planet; makes up about 21% of the air by volume.
bubble
Sports; Scuba diving
A collection of air or gas surrounded by a permeable membrane through which gases can enter or exit.
recreational scuba diving
Sports; Scuba diving
Diving to prescribed limits, including a depth no greater than 130 fsw, using only compressed air, and never requiring a decompression stop.
maximum operating depth (ODL)
Sports; Scuba diving
The deepest that a diver can safely go using a particular gas mixture. For example, the MOD for EAN32 (32 per- cent oxygen) is 132 fsw (40 m).
eustachian tube
Sports; Scuba diving
A short tube connecting the back of the nose to the middle ear. If clogged, by mucus, equalization is next to impossible.
