barbital

bar·bi·tal

(bar'bi-tawl),

A hypnotic and sedative; available as barbital sodium (soluble barbital), with the same uses; often used as a buffer.

Synonym(s): 5, 5-diethylbarbituric acid, Veronal

barbital

(bär′bĭ-tôl′, -tăl′)

n.

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

(bar'bi-tawl)

Hypnotic and sedative agent.

barbital, barbitone

a long-acting barbiturate, used as a hypnotic and sedative. Largely replaced by phenobarbital.