di·mor·phic I. \(ˈ)dī|mȯrfik\adjective Etymology:dimorphous + -ic 1. a.: dimorphous 1 b.: occurring in two distinct forms < dimorphic leaves of emergent plants > < a sexually dimorphic butterfly > 2.: combining qualities of two kinds of individuals in one — used chiefly by breeders of fancy-colored canaries II. noun (-s) : a dimorphic individual