- a white, odorless, slightly bitter powder, C12H18N2O3, used as a sedative and hypnotic.
Origin of secobarbital
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A white, odorless barbiturate used in the form of its sodium salt as a sedative and hypnotic.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.