aerobic

The definition of aerobic is needing oxygen for life or activity.

(adjective)

Humans, dogs and elephants are each an example of an aerobic organism.

See aerobic in Webster's New World College Dictionary

adjective

able to live, grow, or take place only where free oxygen is present
of or produced by aerobes
designating or involving exercise, such as running or swimming, that conditions the heart and lungs by increasing the efficiency of oxygen intake by the body

noun

aerobic exercises

See aerobic in American Heritage Dictionary 4

adjective

Biology
a. Living or occurring only in the presence of oxygen: aerobic bacteria.
b. Of or relating to aerobes.
Involving or improving oxygen consumption by the body: aerobic exercise.
Relating to or used in aerobics: aerobic shoes.

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