Added 9 October 2026
duality
/d(j)uːˈælɪti/ noun
Latin root: duālitās Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about duality at Wordnik → Where our words come from →
-
Being twofold; a classification into two opposed parts or subclasses.
the dichotomy between eastern and western culture
- (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.
- (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry.
Origin
From Latin duālitās. Equivalent to dual + -ity.
From Wiktionary, via Kaikki.org (CC BY-SA)