The art of revealing future events by means of a pretended communication with the dead; the black art; hence, magic in general; conjuration; enchantment. See Black art.
1. the art or practice of magically revealing the future, of ally attaining other purposes esp. through communication with and the intervention of the dead. 2. the art or practice of magically conjuring up the souls of the dead.
The practice of communicating with the spirits of the dead in order to predict the future.