: not aerobic: such as
a
of exercise
: strengthening muscles by forcing them to work very hard for a brief time
anaerobic sports/training
Weight lifting is an anaerobic exercise.
b
technical
: not using oxygen
Some bacteria are aerobic and others are anaerobic.
Cite this Entry
“Anaerobic.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/anaerobic. Accessed 15 Apr. 2026.
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