| ferment (def. 2). |
| 1. | Also called organized ferment. any of a group of living organisms, as yeasts, molds, and certain bacteria, that cause fermentation. |
| 2. | Also called unorganized ferment. an enzyme. |
| 3. | fermentation. |
| 4. | agitation; unrest; excitement; commotion; tumult: The new painters worked in a creative ferment. The capital lived in a political ferment. |
| 5. | to act upon as a ferment. |
| 6. | to cause to undergo fermentation. |
| 7. | to inflame; foment: to ferment prejudiced crowds to riot. |
| 8. | to cause agitation or excitement in: Reading fermented his active imagination. |
| 9. | to be fermented; undergo fermentation. |
| 10. | to seethe with agitation or excitement. |

ferment fer·ment (fûr'měnt')
n.
An agent, as a yeast, a bacterium, a mold, or an enzyme, that causes fermentation.
Fermentation.