noun Pharmacology.
  1. a white, slightly water-soluble, crystalline solid, C10H13NO2, used in medicine chiefly as an agent for checking or preventing fever or for relieving pain: withdrawn because of unfavorable side effects.

Origin of phenacetin

First recorded in 1885–90; phen(etidine) + acet(yl) + -in2
Also called acetophenetidin. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for phenacetin

Historical Examples of phenacetin

British Dictionary definitions for phenacetin


  1. a white crystalline solid formerly used in medicine to relieve pain and fever. Because of its kidney toxicity it has been superseded by paracetamol. Formula: CH 3 CONHC 6 H 4 OC 2 H 5Also called: acetophenetidin

Word Origin for phenacetin

C19: from phenetidine + acetyl + -in
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