noun Pharmacology.

a colorless, needlelike, crystalline compound, C3H4N2O2, used in the synthesis of pharmaceutical substances and resins.

Origin of hydantoin

First recorded in 1865–70; hyd(rogen) + (all)antoin
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British Dictionary definitions for hydantoin



a colourless odourless crystalline compound present in beet molasses: used in the manufacture of pharmaceuticals and synthetic resins. Formula: C 3 H 4 N 2 O 2

Word Origin for hydantoin

C20: from hyd (rogen + all) antoin product occurring in allantoic fluid
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

hydantoin in Medicine




A crystalline substance derived from urea or allantoin.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.