Meaning of bottom time | Babel Free
Definitions
The total amount of time, calculated in minutes, from the beginning of a descent underwater to the beginning of an ascent above-water.
countable, uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.