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Meaning of enzyme

en•zyme

Pronunciation: (en'zīm), [key]
— n. Biochem.
  1. any of various proteins, as pepsin, originating from living cells and capable of producing certain chemical changes in organic substances by catalytic action, as in digestion. Cf. -ase.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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