follow Dictionary.com

Is irregardless a word?

inhibitor

or inhibiter

[in-hib-i-ter] /ɪnˈhɪb ɪ tər/
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.
Origin of inhibitor
1865-1870
1865-70; inhibit + -or2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for inhibitor
Historical Examples
  • Even in the DR's the inhibitor may sometimes work itself out.

  • Such birds being heterozygous for the inhibitor factor, should be whites showing some coloured "ticks."

    Mendelism Reginald Crundall Punnett
  • On account of this weakness of the inhibitor in the germ-plasm of No. 117 that inhibitor is rarely fully activated.

  • The Silky is pure for the pigmentation factor, but does not contain the inhibitor factor.

    Mendelism Reginald Crundall Punnett
  • Probably we ought to regard the beardless as a bearded wheat in which there is an inhibitor that stops the beard from growing.

    Mendelism Reginald Crundall Punnett
  • In this case we may conceive that an unusually potent condition of the inhibitor wholly stopped the development of the tail.

  • The character in this case is an inhibitor of tail development.

British Dictionary definitions for inhibitor

inhibitor

/ɪnˈhɪbɪtə/
noun
1.
Also called inhibiter. a person or thing that inhibits
2.
Also called anticatalyst. a substance that retards or stops a chemical reaction Compare catalyst
3.
(biochem)
  1. a substance that inhibits the action of an enzyme
  2. 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 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for inhibitor
n.

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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
inhibitor in Medicine

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.
Cite This Source

Word of the Day

Difficulty index for inhibitor

Some English speakers likely know this word

Word Value for inhibitor

0
15
Scrabble Words With Friends

Nearby words for inhibitor