- the yeasty froth on fermenting malt liquors
- an archaic or dialect word for yeast
WordReference Random House Unabridged Dictionary of American English © 2020
barm (bärm),USA pronunciation n.
- Wineyeast formed on malt liquors while fermenting.
- bef. 1000; Middle English berme, Old English beorma; cognate with Frisian berme, German Bärme, Swedish bärme; akin to ferment
Collins Concise English Dictionary © HarperCollins Publishers::
barm /bɑːm/ n
'barm' also found in these entries (note: many are not synonyms or translations):