phenobarbital

[ fee-noh-bahr-bi-tawl, -tal, -nuh- ]

nounPharmacology.
  1. a white, crystalline powder, C12H12N2O3, used as a sedative, a hypnotic, and as an antispasmodic in epilepsy.

Origin of phenobarbital

1
First recorded in 1915–20; pheno- + barbital
  • Also especially British, phe·no·bar·bi·tone [fee-noh-bahr-bi-tohn, -nuh-]. /ˌfi noʊˈbɑr bɪˌtoʊn, -nə-/.

Words Nearby phenobarbital

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How to use phenobarbital in a sentence

British Dictionary definitions for phenobarbital

phenobarbital

/ (ˌfiːnəʊˈbɑːbɪtəl) /


noun
  1. a white crystalline derivative of barbituric acid used as a sedative for treating insomnia and as an anticonvulsant in epilepsy. Formula: C 12 H 12 N 2 O 3

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for phenobarbital

phenobarbital

[ fē′nō-bärbĭ-tôl′, -tăl′ ]


  1. A crystalline barbiturate used as a sedative and an anticonvulsant. Chemical formula: C12H12N2O3.

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