catalyses

Variant of catalysis

noun pl. catalyses

the speeding up or, sometimes, slowing down of the rate of a chemical reaction caused by the addition of some substance that does not undergo a permanent chemical change

Origin: ModL < Gr katalysis, dissolution: see cata- & -lysis

Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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