| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| ferment | |
| —n | |
| 1. | any agent or substance, such as a bacterium, mould, yeast, or enzyme, that causes fermentation |
| 2. | another word for fermentation |
| 3. | commotion; unrest |
| —vb | |
| 4. | to undergo or cause to undergo fermentation |
| 5. | to stir up or seethe with excitement |
| [C15: from Latin fermentum yeast, from fervēre to seethe] | |
| fer'mentable | |
| —adj | |
| fermenta'bility | |
| —n | |
| fer'menter | |
| —n | |
ferment fer·ment (fûr'měnt')
n.
An agent, as a yeast, a bacterium, a mold, or an enzyme, that causes fermentation.
Fermentation.