bottom time
noun1
Diving, Hobbies, Lifestyle, Sports, Underwater diving The total amount of time, calculated in minutes, from the beginning of a descent underwater to the beginning of an ascent above-water.
noun
Diving, Hobbies, Lifestyle, Sports, Underwater diving The total amount of time, calculated in minutes, from the beginning of a descent underwater to the beginning of an ascent above-water.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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