bicuculline
noun
bi·cu·cul·line
| \ bī-ˈku̇k-yə-ˌlēn, -lən
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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