epiph·y·se·al \ə̇|pifə|sēəl, -|zē- also |epə|fizē-\adjective alsoep·i·phys·i·al\|epə|fizē-\ Etymology:epiphyseal alteration of epiphysial; epiphysial from New Latin epiphysis + English -al : of or belonging to an epiphysis : occurring toward an epiphysis < epiphyseal end of a bone > : taking place at an epiphysis < epiphyseal formation of bone >