MorphonMor"phon\, n. [Gr. ?, p. pr. of ? to form.] (Biol.) A morphological individual, characterized by definiteness of form bion, a physiological individual. See Tectology. --Haeckel. Note: Of morphons there are six orders or categories: 1. Plastids or elementary organisms. 2. Organs, homoplastic or heteroplastic. 3. Antimeres (opposite or symmetrical or homotypic parts). 4. Metameres (successive or homodynamous parts). 5. Person[ae] (shoots or buds of plants, individuals in the narrowest sense among the higher animals). 6. Corms (stocks or colonies). For orders 2, 3, and 4 the term idorgan has been recently substituted. See Idorgan.