[nuh-prok-suh n]
noun Pharmacology.
  1. a nonsteroidal anti-inflammatory substance, C14H14O3, used chiefly in the management of certain types of arthritis and as a painkiller.

Origin of naproxen

by shortening and rearrangement of methoxy-, naphthyl-, and propionic, components of one of its chemical names Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

naproxen in Medicine


  1. A drug used to reduce inflammation and pain, especially in the treatment of arthritis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.