| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| barm |
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| PRONUNCIATION: | bärm |
| NOUN: | The yeasty foam that rises to the surface of fermenting malt liquors. | | ETYMOLOGY: | Middle English berme, from Old English beorma, yeast. See bhreu- in Appendix I.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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