Dictionary
a•xen•ic
Pronunciation: (ā-zen'ik, ā-zē'nik), [key]—
adj. Biol.
1. (of an experimental animal) raised under sterile conditions; germfree.
2. (of a laboratory culture) uncontaminated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.