ace·ti·fi·ca·tion
ə-ˌsē-tə-fə-ˈkā-shən
-ˌse-
plural -s
1
: a turning sour or into vinegar especially through the action of bacteria
2
: the production of acetic acid by acetic fermentation : the growth in an alcoholic medium of bacteria that produce acetic and lactic acids
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Merriam-Webster unabridged



