so·la·nine  (sō'lə-nēn', -nĭn)  n. A bitter poisonous alkaloid, C45H73NO15, derived from potato sprouts, tomatoes, and nightshade and having narcotic properties formerly used to treat epilepsy. [French, from Latin sōlānum, nightshade, from sōl, sun; see sāwel- in Indo-European roots.] |