\Fran*gu"lic\, Frangulinic \Fran`gu*lin"ic\, a.
(Chem.)
Pertaining to, or drived from, frangulin, or a species
({Rhamnus Frangula}) of the buckthorn.
{Frangulinic acid} (Chem.), a yellow crystalline substance,
   resembling alizarin, and obtained by the decomposition of
   frangulin.