Definition of theurgy

• n. - A divine work; a miracle; hence, magic; sorcery.
• n. - A kind of magical science or art developed in Alexandria among the Neoplatonists, and supposed to enable man to influence the will of the gods by means of purification and other sacramental rites.
• n. - In later or modern magic, that species of magic in which effects are claimed to be produced by supernatural agency, in distinction from natural magic.