[ noun fur-ment; verb fer-ment ]
/ noun ˈfɜr mɛnt; verb fərˈmɛnt /


verb (used with object)

verb (used without object)

to be fermented; undergo fermentation.
to seethe with agitation or excitement.

Origin of ferment

1350–1400; Middle English < Latin fermentum yeast (noun), fermentāre to cause to rise (v.); akin to barm, Latin fervēre to boil

Related forms

Can be confused

ferment foment
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fermentable

British Dictionary definitions for fermentable


noun (ˈfɜːmɛnt)

any agent or substance, such as a bacterium, mould, yeast, or enzyme, that causes fermentation
another word for fermentation
commotion; unrest

verb (fəˈmɛnt)

to undergo or cause to undergo fermentation
to stir up or seethe with excitement

Derived Forms

fermentable, adjectivefermentability, nounfermenter, noun

Word Origin for ferment

C15: from Latin fermentum yeast, from fervēre to seethe


See foment
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

Medicine definitions for fermentable


[ fûrmĕnt′ ]


An agent, as a yeast, bacterium, mold, or enzyme, that causes fermentation.


To cause or undergo fermentation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.