from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Life sustained by an organism in the presence of air or oxygen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any form of life that is sustained by the presence of air (or oxygen)
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. life sustained in the presence of air or oxygen
Sorry, no etymologies found.