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diphenhydramine

[dahy-fen-hahy-druh-meen] /ˌdaɪ fɛnˈhaɪ drəˌmin/
noun, Pharmacology
1.
a white, crystalline, antihistaminic compound, C 17 H 21 NO, used orally, topically, and parenterally, especially for allergies.
Origin of diphenhydramine
1945-1950
1945-50; diphen(yl) + hydr-2 + amine
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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