Pronunciation: (het"u-rol'u-gus), [key]
1. Biol.of different origin; pertaining to heterology.
2. Med., Pathol.consisting of dissimilar tissue, as that of another species or that of a tumor.
3. Immunol.pertaining to an antigen that elicits a reaction in a nonspecific antibody.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.