'Fermenting' definitions:

Definition of 'fermenting'

From: WordNet
noun
A process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol [syn: zymosis, zymolysis, fermentation, fermenting, ferment]

Definition of 'Fermenting'

From: GCIDE
  • Ferment \Fer*ment"\, v. t. [imp. & p. p. Fermented; p. pr. & vb. n. Fermenting.] [L. fermentare, fermentatum: cf. F. fermenter. See Ferment, n.] To cause ferment or fermentation in; to set in motion; to excite internal emotion in; to heat. [1913 Webster]
  • Ye vigorous swains! while youth ferments your blood. --Pope. [1913 Webster]