n. (Med.), A mental disorder characterized by alternating episodes of mania and depression.
n. [ NL., fr. Gr. &unr_;; &unr_; beyond, over + &unr_; to animate; &unr_; in + &unr_; soul. See Psychology. ] The passage of the soul, as an immortal essence, at the death of the animal body it had inhabited, into another living body, whether of a brute or a human being; transmigration of souls. Sir T. Browne. [ 1913 Webster ]
n. [ NL. See Psycho-. ] [ 1913 Webster ]