DUALISM

noun Date: 1794 a theory that considers reality to consist of two irreducible elements or modes, the quality or state of being dual or of having a dual nature, 3. a doctrine that the universe is under the dominion of two opposing principles one of which is good and the other evil, a view of human beings as constituted of two irreducible elements (as matter and spirit), dualist noun dualistic adjective dualistically adverb