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coenzyme

[koh-en-zahym]
noun Biochemistry.
  1. a molecule that provides the transfer site for biochemical reactions catalyzed by an enzyme.
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Origin of coenzyme

1905–10; < German Ko-enzym; see co-, enzyme
Related formsco·en·zy·mat·ic [koh-en-zahy-mat-ik, -zi-] /koʊˌɛn zaɪˈmæt ɪk, -zɪ-/, adjectiveco·en·zy·mat·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for coenzyme

Historical Examples

  • They can usually be separated from their corresponding enzymes by dialysis, the coenzyme passing through the parchment membrane.

    The Chemistry of Plant Life

    Roscoe Wilfred Thatcher

  • The best known example of a coenzyme in plant tissues is in connection with the activity of the zymase of yeast cells.

    The Chemistry of Plant Life

    Roscoe Wilfred Thatcher


British Dictionary definitions for coenzyme

coenzyme

noun
  1. biochem a nonprotein organic molecule that forms a complex with certain enzymes and is essential for their activitySee also apoenzyme
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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

coenzyme in Medicine

coenzyme

(kō-ĕnzīm′)
n.
  1. A thermostable nonprotein organic substance that usually contains a vitamin or mineral and combines with a specific apoenzyme to form an active enzyme system.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

coenzyme in Science

coenzyme

[kō-ĕnzīm′]
  1. A nonprotein organic substance that usually contains a vitamin or mineral and combines with a specific protein, called an apoenzyme, to form an active enzyme system.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.