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pentobarbital sodium

(pen′tō bär′bi tôl′, -täl′)

an odorless, white, crystalline powder, CHNONa, soluble in water: used in medicine as a sedative, hypnotic, and analgesic

Origin: pento- for penta- (because of methylbutyl five-carbon group) + barbital

See pentobarbital sodium in American Heritage Dictionary 4

noun

A white crystalline or powdery barbiturate, C₁₁H₁₇N₂O₃Na, used as a hypnotic, a sedative, and an anticonvulsive drug. Also called pentobarbitone.

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