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[in-hib-i-ter] /ɪnˈhɪb ɪ tər/
a person or thing that inhibits.
Chemistry. a substance that decreases the rate of or stops completely a chemical reaction.
any impurity in a mineral that prevents luminescence.
Compare activator (def 3).
Rocketry. an inert antioxidant used with solid propellants to inhibit burning on certain surfaces.
Also, inhibiter.
1865-70; inhibit + -or2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for inhibitors
  • When those extra blood vessels are no longer needed, the body prunes them back to baseline, using naturally occurring inhibitors.
  • Aldosterone inhibitors or digitalis may be used for some patients.
  • Proton-pump or acid-pump inhibitors are probably the best drug treatments for reflux symptoms related to scleroderma.
  • Dietary restrictions and drug interactions with monoamine oxidase inhibitors: the state of the art.
  • It is usually combined with medications, such as epinephrine and intravenous proton pump inhibitors.
  • Our research showed that security, trust, and management tools are seen as the biggest inhibitors to cloud adoption.
  • Let deck dry for two days before applying a clear wood preservative with mildewcides and ultraviolet-light inhibitors.
  • The activators produce more of themselves as well as the inhibitors.
  • Fusion inhibitors are the rising stars of the entry inhibitor group.
  • Some scientists point to high testosterone levels combined with low monoamine oxidase inhibitors, which regulates dopamine.
British Dictionary definitions for inhibitors


Also called inhibiter. a person or thing that inhibits
Also called anticatalyst. a substance that retards or stops a chemical reaction Compare catalyst
  1. a substance that inhibits the action of an enzyme
  2. a substance that inhibits a metabolic or physiological process: a plant growth inhibitor
any impurity in a solid that prevents luminescence
an inert substance added to some rocket fuels to inhibit ignition on certain surfaces
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for inhibitors



1868 in scientific use (earlier as a Scottish legal term), agent noun in Latin form from inhibit.

Online Etymology Dictionary, © 2010 Douglas Harper
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inhibitors in Medicine

inhibitor in·hib·i·tor or in·hib·it·er (ĭn-hĭb'ĭ-tər)

  1. A substance that restrains or retards physiological, chemical, or enzymatic action.

  2. A nerve whose stimulation represses activity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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