bicuculline

noun
bi·​cu·​cul·​line | \ bī-ˈku̇k-yə-ˌlēn, -lən How to pronounce bicuculline (audio) \

Medical Definition of bicuculline

: a convulsant alkaloid C20H17NO6 obtained from plants (family Fumariaceae) and having the capacity to antagonize the action of gamma-aminobutyric acid in the central nervous system

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