duality
dooh a luh tee
- n being twofold; a classification into two opposed parts or subclasses
- n (physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory
- n (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry
- Society has always had this Taylor-sisters duality in its attitude toward young women.
- Entertaining the idea of mind-body duality invites the scorn of those who regard any attempt to dabble beyond the boundaries of conventional science as a waste of time.
- They can have this duality.