Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A white odorless barbiturate, C12H18N2O3, used in the form of its sodium salt as a sedative and hypnotic.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Quinalbarbitone.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions

Etymologies

seco(ndary) + barbital.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From secondary + barbital. (Wiktionary)

Examples

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