Menispermine \Men`i*sper"mine\, n. [Cf. F. m['e]nispermine.] (Chem.) An alkaloid distinct from picrotoxin and obtained from the cocculus indicus (the fruit of {Anamirta Cocculus}, formerly {Menispermum Cocculus}) as a white, crystalline, tasteless powder; -- called also {menispermina}.