• synonyms


noun Chemistry, Pharmacology.
  1. a white, crystalline, odorless, organic powder, C8H9NO, produced by the action of glacial acetic acid on aniline, used chiefly in organic synthesis and formerly in the treatment of fever and headache.
Show More
Also ac·et·an·i·lid [as-i-tan-l-id] /ˌæs ɪˈtæn l ɪd/.

Origin of acetanilide

First recorded in 1860–65; acet- + anilide
Also called acetylaniline.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for acetanilide


acetanilid (ˌæsɪˈtænɪlɪd)

  1. a white crystalline powder used in the manufacture of dyes and rubber, as an analgesic in medicine, and as a precursor in penicillin manufacture. Formula: C 6 H 5 NHCOCH 3
Show More

Word Origin

C19: from aceto- + aniline + -ide
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

acetanilide in Medicine


  1. A white crystalline compound used to relieve pain and reduce fever.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.