Medical Definition of aerobic
1: living, active, or occurring only in the presence of oxygen <aerobic respiration>
2: of, relating to, or induced by aerobes
3a: of, relating to, or being activity which increases the body's demand for oxygen thereby resulting in a marked temporary increase in respiration and heart rate <aerobic exercise>b: relating to, resulting from, or used in aerobics or aerobic activity <aerobic shoes>
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