aer·o·bic 
(â-rōbĭk)
(â-rōbĭk)adj.
1. Biology
a. Living or occurring only in the presence of free oxygen: aerobic bacteria.
b. Of or relating to aerobes.
2. Involving or improving oxygen consumption by the body: aerobic exercise.
3. Relating to or used in aerobics: aerobic shoes.
aer·obi·cal·ly adv.