The meaning of ferment is to undergo fermentation. How to use ferment in a sentence. Any of a group of living organisms, as yeasts, molds, and certain bacteria, that cause fermentation.
See examples of ferment used in a sentence. If food or drink ferments or if you ferment it, it goes through a chemical change because of the action of yeast or bacteria, which may cause it to produce bubbles or heat, or turn sugars in it into alcohol. To cause to undergo fermentation:
To produce by or as if by fermentation: Ferment the wine in oak barrels; Hostility that was fermented by envy.
Ferment is a biochemical process in which an organic substance, like sugar or starch, is broken down into simpler substances by the action of enzymes, bacteria, yeasts, or mold. Jan 20, 2026ferment (third-person singular simple present ferments, present participle fermenting, simple past and past participle fermented) to react, using fermentation; Definition of ferment verb in oxford advanced learner's dictionary.
Ferment - wordreference english dictionary, questions, discussion and forums. Something, such as a yeast, bacterium, mold, or enzyme, that causes fermentation. While you might be more familiar with the verb ferment, referring to the natural process that produces alcohol, the word is also used as a noun, giving the same type of boiling emotion to people or events.
