Definition of: chiasmatypy

(kī.az′mə·tī′pē) noun Genetics
The intertwining of two homologous chromosomes during side-by-side conjugation of the chromosome threads in meiosis, resulting in blending and possible crossing over at points of contact. [<Gk. chiasma crossing + typos impression]
—chi·as′ma·type′ adjective & noun