fermentation fermentation /ˌfɝːmənˈteɪʃən/

noun

1. () A process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol  ( ferment , fermenting , zymolysis , fermentation , zymosis )
   a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol
     Yeast carries out fermentation to convert sugar into alcohol.
   Yeast carries out fermentation to convert sugar into alcohol.
   
   
2. () A state of agitation or turbulent change or development  ( agitation , tempestuousness , ferment , fermentation , unrest )
   a state of agitation or turbulent change or development
    The political ferment produced new leadership
   the political ferment produced new leadership
    Social unrest
   social unrest