phenobarbital

noun phe·no·bar·bi·tal \ ˌfē-nō-ˈbär-bə-ˌtȯl \

Definition of phenobarbital

: a crystalline barbiturate C12H12N2O3 used as a hypnotic, sedative, and anticonvulsant

First Known Use of phenobarbital

1919

in the meaning defined above

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Medical Dictionary

phenobarbital

noun phe·no·bar·bi·tal \ ˌfē-nō-ˈbär-bə-ˌtȯl, -tȧl \

medical Definition of phenobarbital

: a crystalline barbiturate C12H12N2O3 that is used orally or is administered by injection in the form of its sodium salt C12H11N2NaO3 as a hypnotic and sedative — see luminal

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