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An anticonvulsant drug, C15H12N2O2, used to treat epilepsy, often in the form of its sodium salt. Also called diphenylhydantoin.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Pharmacology) an anticonvulsant drug used in the management of epilepsy and in the treatment of abnormal heart rhythms. Formula: C15H11N2O2Na. Also called: diphenylhydantoin sodium
[C20: from (di)pheny(lhydan)toin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
phen•y•to•in(ˌfɛn ɪˈtoʊ ɪn, fəˈnɪt oʊ-)
a barbiturate-related substance, C15H12N2O2, used as an anticonvulsant in the treatment of epilepsy.
[1940–45; shortening of diphenylhydantoin= di-1 + phenyl + hydantoin a crystalline derivative of imidazole]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||phenytoin - an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative|
hydantoin - any of a group of anticonvulsant drugs used in treating epilepsy
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