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Benadryl

[ben-uh-dril]
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Pharmacology, Trademark.
  1. a brand of diphenhydramine.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for benadryl

Benadryl

noun
  1. trademark an antihistamine drug used in sleeping tablets; diphenhydramine. Formula: C 17 H 21 NO
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012