semidiametraliter

semidiametraliter [semidiametralis+-ter], in the form of half a diameter or of a radius or radii, radially. si ~iter terre trium millium milliariorum ‥ non immerito videri poterit aliam fore ‥ respectu terre nostre habitabilis sumendam inchoationem declinationis solis Ps.-Gros. Summa 568.