Source : Webster's Revised Unabridged Dictionary (1913)

Dulcamarin \Dul`ca*ma"rin\, n. (Chem.)
   A glucoside extracted from the bittersweet ({Solanum
   Dulcamara}), as a yellow amorphous substance. It probably
   occasions the compound taste. See {Bittersweet}, 3
   (a) .