{ Fran‐gu″lic (?), 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.