[ bahr-bi-tawl, -tal ]
/ ˈbɑr bɪˌtɔl, -ˌtæl /

noun Pharmacology.

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

Origin of barbital

1915–20; barbit(uric acid) + (Veron)al, the name of a formerly used sedative and hypnotic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for barbital

Medicine definitions for barbital


[ bärbĭ-tôl′, -tăl′ ]


A white crystalline barbiturate used as a sedative and hypnotic, especially in the form of its soluble salt, sodium barbital.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.