barbital(redirected from 5,5-diethylbarbituric acid)
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A barbiturate, C8H12N2O3, that is a white crystalline powder and was formerly used as a hypnotic and sedative especially in the form of its sodium salt.
bar•bi•tal(ˈbɑr bɪˌtɔl, -ˌtæl)
a barbiturate compound, C7O3N2H12, formerly used as a hypnotic.
[1915–20; barbit(uric acid) + (Veron)al proprietary name]