duality
noun/d(j)uːˈælɪti/
Etymology From Latin duālitās. Equivalent to dual + -ity.
1
In literature The quality of containing or comprising two often opposed parts or aspects.
- the moral duality of certain characters
- Mother Nature's eternal duality, both life-giving and destructive
1 more example
- He was fascinated by the duality of human nature.
2
The aggregate of two complementary subclasses or parts.
- philosophical duality
- The novel explored the duality of good and evil.
1 more example
- that fundamental duality that characterises the life of all animals—hungry or sated
3
Mathematics, Natural sciences, Physical sciences, Physics, Sciences The mathematical equivalence of two seemingly different theoretical descriptions of a physical system.
- wave-particle duality
4
The interchangeability of points and planes.
Projective geometry
- Synonyms
- dichotomy
- Derived terms
- autoduality, Koszul duality, nonduality, non-self-duality, pseudoduality, self-duality, wave-particle duality