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To ferment, as a liquid. The working of beer when the barm is put in. Bacon.

An infusion of malt which is unfermented, or is in the act of fermentation; the sweet infusion of malt, which ferments and forms beer; hence, any similar liquid in a state of incipient fermentation.

An unfermentable sugar of the pentose class, C5H10O5, formed by the hydrolysis of xylan; wood sugar.

A fermented drink, or milk beer, made by the Turks.

The foam, or troth (top yeast), or the sediment (bottom yeast), of beer or other in fermentation, which contains the yeast plant or its spores, and under certain conditions produces fermentation in saccharine or farinaceous substances; a preparation used for raising dough for bread or cakes, and making it light and puf…

A soluble ferment, or enzyme. See Enzyme.

A ferment.

Pertaining to, or produced by, fermentation; -- formerly, by confusion, used to designate lactic acid.

A mother substance, or antecedent, of an enzyme or chemical ferment; -- applied to such substances as, not being themselves actual ferments, may by internal changes give rise to a ferment. The pancreas contains but little ready-made ferment, though there is present in it a body, zymogen, which gives birth to the fermen…

One of a physiological group of globular bacteria which produces fermentations of diverse nature; -- distinguished from pathogene.

Capable of producing a definite zymogen or ferment. Zymogenic organism (Biol.), a microörganism, such as the yeast plant of the Bacterium lactis, which sets up certain fermentative processes by which definite chemical products are formed; -- distinguished from a pathogenic organism. Cf. Micrococcus.…

One who is skilled in zymology, or in the fermentation of liquors.

A treatise on the fermentation of liquors, or the doctrine of fermentation. [Written also zumology.]

An instrument for ascertaining the degree of fermentation occasioned by the mixture of different liquids, and the degree of heat which they acquire in fermentation.

A bacteroid ferment.

A fermentation; hence, an analogous process by which an infectious disease is believed to be developed.

Of, pertaining to, or caused by, fermentation.