ferment Hear it!

ferment definition

fer·ment (fʉr′ment′; for v. fər ment′)

noun

  1. a substance or organism causing fermentation, as yeast, bacteria, enzymes, etc.
  2. fermentation
  3. a state of excitement or agitation

Etymology: ME < OFr < L fermentum, leaven, yeast < fervere, to boil, be agitated: see barm

transitive verb

  1. to cause fermentation in
  2. to excite; agitate

intransitive verb

  1. to be in the process of fermentation
  2. to be excited or agitated; seethe

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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