Mēn'i-spēr'mi-nā or Mēn'i-spēr'mine, n.

n. [Fr. ménispermine, from ménisperme, N. Lat. menispermum, from μῆν, the moon, and σπέρμα, seed, from σπείρειν, to sow.] (Chem.) An alkaloid obtained from Anamirta paniculata, once called Menispermum. This alkaloid is a white, opaque, crystalline solid, which is tasteless, and medicinally inert.