Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Old French
Origin: fermenter, from Latin fermentum 'yeast'

ferment

1 verb
     
Related topics: Drink, Biology, Chemistry
fer‧ment1 [intransitive and transitive]
DFDHC if fruit, beer, wine etc ferments, or if it is fermented, the sugar in it changes to alcohol:
fermented fruit juice
—fermentation noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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