Dimorphism or dimorphic may refer to: Science Dimorphic root systems, plant roots with two distinctive forms for two separate functions Sexual dimorphism, a phenotypic difference between males and females of the same species Nuclear dimorphism, when a cell's nuclear apparatus is composed of two structurally and functionally differentiated types of nuclei Frond dimorphism, differing forms of fern fronds between the sterile and fertile fronds Phenotypic dimorphism, switching between two cell-types Dimorphic fungi, fungi which undergo this type of switching Dimorphism (geology), the property of some substances to exist in two distinct crystalline forms Mathematics Semilinear map, a homomorphism between modules, paired with the associated homomorphism between the respective base rings See also Polymorphism (disambiguation) Monomorphic (disambiguation)