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Meaning of inhibitor

in•hib•i•tor

Pronunciation: (in-hib'i-tur), [key]
— n.
  1. a person or thing that inhibits.
  2. a substance that decreases the rate of or stops completely a chemical reaction.
  3. any impurity in a mineral that prevents luminescence. Cf. activator (def. 3).
  4. an inert antioxidant used with solid propellants to inhibit burning on certain surfaces.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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