Pronunciation: (bī"u-loj'i-kul), [key]
1. pertaining to biology.
2. of or pertaining to the products and operations of applied biology: a biological test.
Pharm.any substance, as a serum or vaccine, derived from animal products or other biological sources and used to treat or prevent disease. Also,bi"o•log'ic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.