santonic
San*ton"ic, a. (Chem.) Defn: Of, pertaining to, or designating, an acid (distinct from santoninic acid) obtained from santonin as a white crystalline substance.
San*ton"ic, a. (Chem.) Defn: Of, pertaining to, or designating, an acid (distinct from santoninic acid) obtained from santonin as a white crystalline substance.