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 (sĕk′ō-bär′bĭ-tôl′, -tăl′)
A white odorless barbiturate, C12H18N2O3, used in the form of its sodium salt as a sedative and hypnotic.

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) pharmacol an anaesthetic and sedative drug derived from barbiturate
Also called: quinalbarbitone
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌsɛk oʊˈbɑr bɪˌtɔl, -ˌtæl)

a white, odorless, slightly bitter powder, C12H18N2O3, used as a sedative and hypnotic.
[1950–55; Seco(nal) trademark of a secobarbital + barbital]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.secobarbital - barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions
barbiturate - organic compound having powerful soporific effect; overdose can be fatal
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Therapeutic doses should not induce excessive sedative or hypnotic effects, although these are adverse effects commonly reported by patients, especially at induction.[2,4,5,9] Phenobarbital is well absorbed orally although it may take as long as 15 minutes to reach therapeutic levels in the brain after IV administration as it is not particularly lipid-soluble.[8,9] Phenobarbital is a long-acting barbiturate with a half-life of 96 hours.[9] Other barbiturates prescribed in this class are pentobarbital and secobarbitol; their short onset and duration of 3-8 hours limit their use to treatment of status epilepticus.[3] Mephobarbital, primidone and amobarbitol may also be used in combination with other AEDs.