<physiology> State of being dual or twofold; a twofold division; any system which is founded on a double principle, or a twofold distinction; as: The theory that each cerebral hemisphere acts independently of the other. "An inevitable dualism bisects nature, so that each thing is a half, and suggests another thing to make it whole." (Emerson)

Origin: Cf. F. Dualisme.

(01 Mar 1998)