verb, noun
verb to experience a chemical change because of the action of YEAST or bacteria, often changing sugar to alcohol; to make sth change in this way:
[V] Fruit juices ferment if they are kept for too long. * (figurative) A blend of emotions fermented inside her. * [VN] Red wine is fermented at a higher temperature than white.
fermentation noun [U]:
Sugar is converted into alcohol by a process of fermentation.
noun [U,sing.] (formal) a state of political or social excitement and confusion:
a period of intense political ferment * The country is in ferment.
