fermentation
/ˌfɜː(ɹ)mənˈteɪʃən/
This is a dedicated page at /food/fermentation/. Audio uses free dictionary clips when available, otherwise browser speech after you click Play.
Meaning
noun
Any of many anaerobic biochemical reactions in which an enzyme (or several enzymes produced by a microorganism) catalyses the conversion of one substance into another; especially the conversion (using yeast) of sugars to alcohol or acetic acid with the evolution of carbon dioxide
noun
A state of agitation or excitement; a ferment.