yeast
noun /jiːst/
/jiːst/
[uncountable, countable]- a fungus used in making beer and wine, or to make bread riseTopics Cooking and eatingc2Oxford Collocations DictionaryYeast is used before these nouns:
- extract
- infection
Word OriginOld English, of Germanic origin; related to Dutch gist and German Gischt ‘froth, yeast’, from an Indo-European root shared by Greek zein ‘to boil’.