from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A crystalline compound, C8H9NO2, used in medicine to relieve pain and reduce fever.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A white crystalline compound used in medicine as an anodyne to relieve pain and reduce fever.

from the GNU version of the Collaborative International Dictionary of English

  • n. a white crystalline compound (HO.C6H4.NH.CO.CH3) used as an analgesic and also as an antipyretic. It has molecular weight 151.16. It is the active ingredient in the commercial analgesics Tylenol and datril.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an analgesic for mild pain but not for inflammation; also used as an antipyretic; (Datril, Tylenol, Panadol, Phenaphen, Tempra, and Anacin III are trademarks of brands of acetaminophen tablets)


from The American Heritage® Dictionary of the English Language, 4th Edition

acet(o)- + amino- + phen(ol).


  • Leading company news, 11 million bottles of private-label acetaminophen sold by Wal-Mart, CVS, Safeway and more than 100 other retailers are being recalled.

    Consumer Sentiment Weakens Stocks

  • And if you take that multi-symptom cold medication not sort of understanding that it has this big dose of acetaminophen, which is, you know, the active agreement in Tylenol and other products, and you take a Tylenol or some other acetaminophen-containing pill, you can actually risk overdose, and that can put your liver in trouble.

    'Ah-Choo!' Takes On Mysteries Of The Common Cold

  • It's actually the Tylenol, the acetaminophen, that is complexed with many of the over-the-counter sleeping medication that would be terribly dangerous.

    CNN Transcript Jan 22, 2008

  • Madeleine's grandfather did indeed tell reporters that the McCanns gave the children Calpol, but Calpol is nothing more than a solution of liquid paracetamol (known as acetaminophen in the United States), marketed specifically for the treatment of children with flu-like symptoms or teething problems.

    Cultural Divide

  • Lisa, we hear a lot about acetaminophen, which is in Tylenol and other things, can sometimes affect the liver.

    CNN Transcript Sep 20, 2003

  • And when you're thinking about Tylenol, it has the active ingredient acetaminophen, which is also the same active ingredient found in a lot of prescription medications.

    CNN Transcript Sep 19, 2003

  • We're talking about acetaminophen, which is one of the most common pain killers out there.

    CNN Transcript Sep 20, 2002

  • If approved, Zohydro could be the first extended-release hydrocodone therapy available without acetaminophen, which is associated with an increased risk of liver toxicity when used in high doses over time.

  • Headache pill reduces the pain of social rejection: paracetamol, also known as acetaminophen, reduces the pain of social rejection according to a new findings of an overlap between the brain circuits involved in physical pain and those involved in feeling rejected, the researchers wondered whether painkillers would also ease emotional distress stemming from exclusion.

    Mind Hacks

  • The Food and Drug Administration assembled 37 experts to recommend ways to reduce deadly overdoses with acetaminophen, which is the leading cause of liver failure in the U.S. and sends 56,000 people to the emergency room annually.

    The News Tribune Blogs


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  • a.k.a. paracetamol. A surprisingly harmonious word.

    September 29, 2008