present participle of ferment

(biochemistry) Any of many anaerobic biochemical reactions in which an enzyme (or several enzymes produced by a microorganism) catalyses the conversion of one substance into another; especially the conversion (using yeast) of sugars to alcohol or acetic acid with the evolution of carbon dioxide

To react, using fermentation; especially to produce alcohol by aging or by allowing yeast to act on sugars; to brew. / To stir up, agitate, cause unrest or excitement in.

Something, such as a yeast or barm, that causes fermentation. / A state of agitation or of turbulent change. / A gentle internal motion of the constituent parts of a fluid; fermentation. / A catalyst.

simple past tense and past participle of ferment

Produced by fermentation. / Of food or drink, turned sour due to unwanted fermentation.

plural of ferment

Third-person singular simple present indicative form of ferment

Of, pertaining to, causing or undergoing fermentation.

plural of fermentation