barbital

noun

bar·​bi·​tal ˈbär-bə-ˌtȯl 

: a crystalline barbiturate C₈H₁₂N₂O₃ used as a sedative and hypnotic often in the form of its soluble sodium salt

Word History

Etymology

barbituric + -al (as in Veronal, trademark for barbital)

First Known Use

1917, in the meaning defined above

Medical Definition

barbital

noun

bar·​bi·​tal ˈbär-bə-ˌtȯl, -ˌtal 

: a crystalline barbiturate C₈H₁₂N₂O₃ formerly used as a sedative and hypnotic often in the form of its soluble sodium salt see veronal