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[fee-noh-bahr-bi-tawl, -tal, -nuh-] /ˌfi noʊˈbɑr bɪˌtɔl, -ˌtæl, -nə-/

noun, Pharmacology.
a white, crystalline powder, C 1 2 H 1 2 N 2 O 3 , used as a sedative, a hypnotic, and as an antispasmodic in epilepsy.
a white crystalline derivative of barbituric acid used as a sedative for treating insomnia and as an anticonvulsant in epilepsy. Formula: C12H12N2O3

1919, from pheno- + barbital (see barbiturate).

phenobarbitone phe·no·bar·bi·tone (fē’nō-bär’bĭ-tōn’)

phenobarbital phe·no·bar·bi·tal (fē’nō-bär’bĭ-tôl’, -tāl’)
A crystalline barbiturate used as a sedative, a hypnotic, and an anticonvulsant.
(fē’nō-bär’bĭ-tôl’, -tāl’)
A crystalline barbiturate used as a sedative and an anticonvulsant. Chemical formula: C12H12N2O3.


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