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a. An agent, such as an enzyme, bacterium, or fungus, that brings about fermentation.
b. Fermentation.
a. A state of agitation or of turbulent change or development.
b. An agent that precipitates or is capable of precipitating such a state; a catalyst.
v. (fər-mĕnt′) fer·ment·ed, fer·ment·ing, fer·ments
1. To undergo fermentation: cabbage that has fermented.
2. To develop in a turbulent or agitated way; seethe: an idea that was fermenting in his mind for months.
1. To cause to undergo fermentation: Yeasts ferment sugars.
2. To produce by or as if by fermentation: ferment the wine in oak barrels; hostility that was fermented by envy.
3. To make turbulent; excite or agitate: a fiery speech that fermented the crowd.

[Middle English, from Old French, from Latin fermentum; see bhreu- in Indo-European roots.]

fer·ment′a·bil′i·ty n.
fer·ment′a·ble adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
gaumeri present in the secondary vegetation of the forest have a good potential in the feeding of ruminants due to their highe st fermentability in the rumen.
In vitro ruminal fluid fermentability of Mucuna pruriens, Mucuna l-dopa and soybean meal incubated with or without l-dopa.
To evaluate the fermentability of the sugars generated from the alkali-pretreated soybean straw, ethanol production was performed using Saccharomyces cerevisiae W303-1A [12].
Rastall, "In vitro fermentability of dextran, oligodextran and maltodextrin by human gut bacteria," British Journal of Nutrition, vol.
Van Zyl et al, (1988) reported that Ca [(OH).sub.2] treatment gives better results for increasing fermentability than NaOH adjustment due to precipitation of toxic compounds.
Therefore, the objectives of this research were first to determine the microbiological characteristics of juice from two clones of energy cane (Type I) and second, their fermentability as feedstock for utilization in ethanol distilleries.
(2006) found that the antimicrobial activity of tyhmol used at a dose of 500 mg/L led to an increased pH, depression in total VFA concentration and a reduction in diet fermentability. However, in another study, Castillejos et al.
Effects of changes in chemical and structural characteristic of ammonia fibre expansion (AFEX) pretreated oil palm empty fruit bunch fibre on enzymatic saccharification and fermentability for biohydrogen.
In vitro fermentability of human milk oligosaccharides by several strains of bifidobacteria.
Redondo-Cuenca, "Sequential extraction of polysaccharides from enzymatically hydrolyzed okara byproduct: physicochemical properties and in vitro fermentability," Food Chemistry, vol.
Krishnan et al., "Enzymatic digestibility and ethanol fermentability of AFEX-treated starch-rich lignocellulosics such as corn silage and whole corn plant," Biotechnology for Biofuels, vol.