Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A drug in the form of a pill or capsule used to relieve insomnia.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun pharmacology A pill or tablet having a soporific effect.

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

  • noun a soporific drug in the form of a pill (or tablet or capsule)

Etymologies

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