barbital

bar·bi·tal

 (bär′bĭ-tôl′, -tăl′)

n.

A barbiturate, C₈H₁₂N₂O₃, that is a white crystalline powder and was formerly used as a hypnotic and sedative especially in the form of its sodium salt.

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[barbit(uric acid) + -al.]

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.

bar•bi•tal

(ˈbɑr bɪˌtɔl, -ˌtæl)

n.

a barbiturate compound, C₇O₃N₂H₁₂, formerly used as a hypnotic.

[1915–20; barbit(uric acid) + (Veron)al proprietary name]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Noun

1.

barbital - a barbiturate used as a hypnotic barbitone, diethylbarbituric acid, diethylmalonylurea, veronal barbiturate - organic compound having powerful soporific effect; overdose can be fatal

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