1
of exercise
: strengthening the heart and lungs by making them work hard for several minutes or more
aerobic exercises like running and swimming
an aerobic workout
2
technical
: using oxygen
aerobic organisms such as bacteria
Cite this Entry
“Aerobic.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/aerobic. Accessed 18 Jun. 2026.
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