Barm (?), n. [OE. berme, AS. beorma; akin to Sw. barma, G. barme, and prob. L. fermenium. 93.] Foam rising upon beer, or other malt liquors, when fermenting, and used as leaven in making bread and in brewing; yeast.
Shak.
© Webster 1913.
Barm, n. [OE. bearm, berm, barm, AS. beorma; akin to E. bear to support.] The lap or bosom. [Obs.]
Chaucer.
© Webster 1913. | 
