• synonyms


[tahy-luh-nawl, -nol]
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Pharmacology, Trademark.
  1. a brand of acetaminophen.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for tylenol



introduced 1955 as the name of an elixir for children, trade name originally registered by McNeil Laboratories, Philadelphia, Pa., from elements abstracted from N-acetyl-para-aminophenol, the chemical name of its active compound.

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Online Etymology Dictionary, © 2010 Douglas Harper

tylenol in Medicine


  1. A trademark for the drug acetaminophen.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.