12 letters · 17 points in Scrabble
noun a state of agitation or turbulent change or development
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
originFrom Middle English fermentacioun, from Latin fermentātiō, fermentātiōnem. By surface analysis, ferment + -ation.
Etymology from Wiktionary, CC BY-SA 3.0