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inhibitor

[in-hib-i-ter]

in·hib·i·tor

[in-hib-i-ter]
noun
1.
a person or thing that inhibits.
2.
Chemistry. a substance that decreases the rate of or stops completely a chemical reaction.
3.
any impurity in a mineral that prevents luminescence. Compare activator (def. 3).
4.
Rocketry. an inert antioxidant used with solid propellants to inhibit burning on certain surfaces.
Also, in·hib·it·er.


Origin:
1865–70; inhibit + -or2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Inhibitor is always a great word to know.
So is retort. Does it mean:
a vessel, commonly a glass bulb with a long neck bent downward, used for distilling or decomposing substances by heat
the molecular weight of a substance expressed in grams; a gram molecule
Collins
World English Dictionary
inhibitor (ɪnˈhɪbɪtə)
 
n
1.  Also called: inhibiter a person or thing that inhibits
2.  Compare catalyst Also called: anticatalyst a substance that retards or stops a chemical reaction
3.  biochem
 a.  a substance that inhibits the action of an enzyme
 b.  a substance that inhibits a metabolic or physiological process: a plant growth inhibitor
4.  any impurity in a solid that prevents luminescence
5.  an inert substance added to some rocket fuels to inhibit ignition on certain surfaces

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

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

  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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