barm

Từ điển Oxford Learners Wordfinder Dictionary

noun

a commercial leavening agent containing yeast cells;
used to raise the dough in making bread and for fermenting beer or whiskey
• Syn:
yeast
• Derivationally related forms:
yeasty (for: yeast)
• Hypernyms:
leaven, leavening
• Hyponyms:
yeast cake, brewer's yeast, mother