allergen
al·ler·gen
noun
Origin
Syncopated compound of allergy + -gen, coined on the model of pharmaceutical words such as pathogen and antigen.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.