polychrome (adj.)

"having or tinted with several or many colors," 1816, from French polychrome, from Latinized form of Greek polykhrōmos (also polykhrōmatos) "many-colored" (see poly- + chrome). As a noun from 1800, "work of art decorated in several colors;" by 1838 as "a fluorescent substance forming prismatic crystals." Related: Polychromic; polychromatic; polychromate.