[ ahy-byoo-proh-fuhn, ahy-byoo-proh-fen ]

  1. a white powder, C13H18O2, used especially in the treatment of rheumatoid arthritis and osteoarthritis as an anti-inflammatory, analgesic, and antipyretic.

Origin of ibuprofen

First recorded in 1965–70; by contraction, rearrangement and respelling of isobutylphenyl propionic acid, the chemical name

Words Nearby ibuprofen

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use ibuprofen in a sentence

British Dictionary definitions for ibuprofen


/ (aɪˈbjuːprəʊfən) /

  1. a drug, isobutylphenylpropionic acid, that relieves pain and reduces inflammation: used to treat arthritis and muscular strains. Formula: C 13 H 18 O 2

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

Scientific definitions for ibuprofen


[ ī′byōō-prōfən ]

  1. An anti-inflammatory drug used to reduce fever or pain.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.