n. [ Poly- + Gr. &unr_; color: cf. F. polychroïte. ] (Chem.) The coloring matter of saffron; -- formerly so called because of the change of color on treatment with certain acids; -- called also
n. [ Poly- + Gr. &unr_; color. ] (Chem.) Esculin; -- so called in allusion to its fluorescent solutions. [ R. ] [ 1913 Webster ]
a. [ Cf. F. polychrome. ] Executed in the manner of polychromy;