diaphysectomy

noun

di·a·phy·sec·to·my | \ ˌdī-ə-fə-ˈzek-tə-mē

, -ˈsek-

plural diaphysectomies

Medical Definition of diaphysectomy

: surgical excision of all or part of a diaphysis (as of the clavicle, femur, or fibula)