barm UK /bɑːm/US /bɑɹm/noun 4verb 1forms 3 noun4 •Foam rising upon beer or other malt liquors when fermenting, used as leaven in brewing and making bread; yeast.[A]nd sometimes make the drink to bear no barm. — 1595 •A small, round, flat individual loaf or roll of bread. •(dialect, no longer used) bosom •(dialect, no longer used) lap verb1 •To spurge; foam formsbarmed · barming · barms
