fermentation

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

• a state of agitation or turbulent change or development
  • the political ferment produced new leadership
    
  • social unrest
    

Related words

• Synonyms: 
  zymosis , zymolysis , fermenting , ferment , agitation , tempestuousness , unrest