Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One of two or more contributing factors.
  • n. A substance, such as a metallic ion or coenzyme, that must be associated with an enzyme for the enzyme to function.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a contributing factor
  • n. a substance, especially a coenzyme or a metal, that must be present for an enzyme to function
  • n. a molecule that binds to and regulates the activity of a protein
  • n. the result of a number being divided by one of its factors

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a substance (as a coenzyme) that must join with another to produce a given result

Etymologies

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