[sek-oh-bahr-bi-tawl, -tal]

noun Pharmacology.

a white, odorless, slightly bitter powder, C12H18N2O3, used as a sedative and hypnotic.

Nearby words

  1. seclude,
  2. secluded,
  3. seclusion,
  4. seclusive,
  5. seclusively,
  6. seconal,
  7. second,
  8. second advent,
  9. second adventist,
  10. second adventists

Origin of secobarbital

First recorded in 1950–55; Seco(nal) + barbital Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for secobarbital


[sĕk′ō-bärbĭ-tôl′, -tăl′]


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.