Source : Webster's Revised Unabridged Dictionary (1913)

Conine \Co"nine\ (? or ?), n. [From {Conium}.] (Chem.)
   A powerful and very poisonous vegetable alkaloid found in the
   hemlock ({Conium maculatum}) and extracted as a colorless
   oil, {C8H17N}, of strong repulsive odor and acrid taste. It
   is regarded as a derivative of piperidine and likewise of one
   of the collidines. It occasions a gradual paralysis of the
   motor nerves. Called also {coniine}, {coneine}, {conia}, etc.
   See {Conium}, 2.