aerobic
    adj 1: depending on free oxygen or air; "aerobic fermentation"
           [syn: aerobic, aerophilic, aerophilous] [ant:
           anaerobic, anaerobiotic]
    2: based on or using the principles of aerobics; enhancing
       respiratory and circulatory efficiency; "aerobic dance";
       "running is very aerobic" [ant: anaerobic]

Aerobic \A`["e]r*o"bic\, a. (Biol.)
   Growing or thriving only in the presence of oxygen; also,
   pertaining to, or induced by, a["e]robies; as, a["e]robic
   fermentation. -- A`["e]r*o"bic*al*ly, adv.
   [Webster 1913 Suppl.]