duality


Also found in: Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.

du·al·i·ty

 (do͞o-ăl′ĭ-tē, dyo͞o-)
n.
The quality or character of being twofold; dichotomy.

duality

(djuːˈælɪtɪ)
n, pl -ties
1. the state or quality of being two or in two parts; dichotomy
2. (General Physics) physics the principle that a wave-particle duality exists in microphysics in which wave theory and corpuscular theory are complementary. The propagation of electromagnetic radiation is analysed using wave theory but its interaction with matter is described in terms of photons. The condition of particles such as electrons, neutrons, and atoms is described in terms of de Broglie waves
3. (Mathematics) geometry the interchangeability of the roles of the point and the plane in statements and theorems in projective geometry

du•al•i•ty

(duˈæl ɪ ti, dyu-)

n.
a dual state or quality; dualism.
[1350–1400; Middle English < Late Latin]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.duality - being twofold; a classification into two opposed parts or subclasses; "the dichotomy between eastern and western culture"
categorisation, categorization, classification - a group of people or things arranged by class or category
2.duality - (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
property - a basic or essential attribute shared by all members of a class; "a study of the physical properties of atomic particles"
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
3.duality - (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry
exchangeability, fungibility, interchangeability, interchangeableness - the quality of being capable of exchange or interchange
geometry - the pure mathematics of points and lines and curves and surfaces

duality

noun dualism, dichotomy, polarity, doubleness, biformity, duplexity We live in a world of duality.
Translations

duality

[djʊˈælɪtɪ] Ndualidad f

duality

[djuːˈælɪti] ndualité fdual nationality ndouble nationalité fdual personality ndédoublement m de la personnalitédual-purpose [ˌdjuːəlˈpɜːrpəs] adj [machine, room, facilities] → à usage mixte

duality

nDualität f
References in classic literature ?
But they make the mistake of ignoring their own duality.
This perpetual suggestion of an absolute duality between his lower and higher moods, and the poetic work produced in them, stimulating the reader to look below the immediate surface of his poetry, makes the study of Wordsworth an excellent exercise for the training of those mental powers in us, which partake both of thought and imagination.
Recognizing the duality of their lordship over the Ariel, he loved the pair of them; yet, somehow, perhaps because she had penetrated deepest into his heart with her magic voice that transported him to the land of Otherwhere, he loved the lady-god beyond all love he had ever known, not even excluding his love for Skipper.
It was on the moral side, and in my own person, that I learned to recognise the thorough and primitive duality of man; I saw that, of the two natures that contended in the field of my consciousness, even if I could rightly be said to be either, it was only because I was radically both; and from an early date, even before the course of my scientific discoveries had begun to suggest the most naked possibility of such a miracle, I had learned to dwell with pleasure, as a beloved daydream, on the thought of the separation of these elements.
Nor can I truly say that I wearied of this beneficent and innocent life; I think instead that I daily enjoyed it more completely; but I was still cursed with my duality of purpose; and as the first edge of my penitence wore off, the lower side of me, so long indulged, so recently chained down, began to growl for licence.
After mentioning the duality of subject and object, which is supposed to constitute consciousness, he proceeds in italics: "EXPERIENCE, I BELIEVE, HAS NO SUCH INNER DUPLICITY; AND THE SEPARATION OF IT INTO CONSCIOUSNESS AND CONTENT COMES, NOT BY WAY OF SUBTRACTION, BUT BY WAY OF ADDITION"(p.
I had vague perceptions of space traversed, of the rolling of a carriage, of a horrible dream in which my strength had become exhausted; but all this was so dark and so indistinct in my mind that these events seemed to belong to another life than mine, and yet mixed with mine in fantastic duality.
They develop the theory of ind-coherent sheaves as renormalized quasi-coherent sheaves, and provide a natural setting for Grothendieck- Serre duality as well as geometric incarnations of numerous categories of interest in representation theory.
Download Geagea calls for a "white revolution" against duality of arms and corruption NNA - Lebanese Forces Party Chief Samir Geagea called Sunday for a "white revolution" to escape the weapons' duality and corruption prevailing in the country.
His spare, biting prose captures the nuances of strength and weakness, challenging their perceived duality.
In 2015, an online petition calling for abolition of linguistic duality and official bilingualism gathered more than 10,000 signatures.