n. Any form of life that is sustained by the presence of air (or oxygen)
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. life sustained in the presence of air or oxygen
Word Usage
"This biological reaction occurs in nature either under complete anaerobiosis or full aerobiosis, in mesophilic (20 to 45 C) or thermophilic (above 45C) conditions (14)."