isozyme: Meaning and Definition of

i•so•zyme

Pronunciation: (ī'su-zīm"), [key]
— n. Biochem.
  1. any of the genetically variant forms of certain enzymes that catalyze the same reaction but that may differ in activity, composition, or physical properties. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.