Obs. [f. Gr. ἀκτινοβόλ-ος ray-darting (f. ἀκτινο- ray + βολή throwing) + -ISM.]
1681. T. Willis, Rem. Med. Wks. (Vocab.), Actinobolism, an irradiation of beams, or shooting forth of the spirits like beams of the sun.
