phenobarbital
noun
phe·no·bar·bi·tal
| \ ˌfē-nō-ˈbär-bə-ˌtȯl
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Definition of phenobarbital
: a crystalline barbiturate C12H12N2O3 used as a hypnotic, sedative, and anticonvulsant
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More Definitions for phenobarbital
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