| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| allergen |
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| SYLLABICATION: | al·ler·gen |
| PRONUNCIATION: |   l  r-jn |
| NOUN: | A substance, such as pollen, that causes an allergy. | | ETYMOLOGY: | German Allergen : Aller(gie), allergy; see allergy + -gen, -gen (from French -gène; see –gen). | | OTHER FORMS: | al ler·genic (-j n k) —ADJECTIVE
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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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