catalyst

catalyst definition - medical

cat·a·lyst (kătˈl-ĭst)

noun
A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.

Related Forms:

  • catˌa·lytˈic (kătˌl-ĭtˈĭk) adjective

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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