Sturm und Drang, upheaval, turbulence - a state of violent disturbance and disorder (as in politics or social conditions generally); "the industrial revolution was a period of great turbulence"

matter, substance - that which has mass and occupies space; "an atom is the smallest indivisible unit of matter"

bottom fermentation - a slow kind of alcoholic fermentation at a temperature low enough that the yeast cells can sink to the bottom of the fermenting liquid; used in the production of lager

chemical action, chemical change, chemical process - (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

top fermentation - a violent kind of alcoholic fermentation at a temperature high enough to carry the yeast cells to the top of the fermenting liquid; used in the production of ale; "top fermentation uses a yeast that ferments at higher temperatures than that used for bottom fermentation"

vinification - the process whereby fermentation changes grape juice into wine

chemical phenomenon - any natural phenomenon involving chemistry (as changes to atoms or molecules)

seethe, boil - be in an agitated emotional state; "The customer was seething with anger"

fire up, stir up, wake, heat, ignite, inflame - arouse or excite feelings and passions; "The ostentatious way of living of the rich ignites the hatred of the poor"; "The refugees' fate stirred up compassion around the world"; "Wake old feelings of hatred"

convert - change the nature, purpose, or function of something; "convert lead into gold"; "convert hotels into jails"; "convert slaves to laborers"

sour, ferment, turn, work - go sour or spoil; "The milk has soured"; "The wine worked"; "The cream has turned--we have to throw it out"

vinify - convert a juice into wine by fermentation; "vinify grape juice"

change state, turn - undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election"

ferment, work - cause to undergo fermentation; "We ferment the grapes for a very long time to achieve high alcohol content"; "The vintner worked the wine in big oak vats"