a white, crystalline, slightly water-soluble powder, C4H4N2O3, used chiefly in the synthesis of barbiturates.
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Origin of barbituric acid
First recorded in 1865–70
Also called malonylurea.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for barbituric acid
/ (ˌbɑːbɪˈtjʊərɪk) /
a white crystalline solid used in the preparation of barbiturate drugs. Formula: C 4 H 4 N 2 O 3Systematic name: 2,4,6-trioxypyrimidine Also called: malonylurea
Word Origin for barbituric acid
C19: partial translation of German Barbitursäure, perhaps from the name Barbara + uric + Säure acid
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
Medicine definitions for barbituric acid
[ bär′bĭ-tur′ĭk ]
An organic acid used in the manufacture of barbiturates.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.