| 单词 | duality |
| 释义 | duality (once / 8653 pages) n As hinted at by the word "dual" within it, duality refers to having two parts, often with opposite meanings, like the duality of good and evil. If there are two sides to a coin, metaphorically speaking, there's a duality. Peace and war, love and hate, up and down, and black and white are dualities. Another term for a duality is a dichotomy. Duality has technical meanings in geometry and physics. In geometry, duality refers to how points and planes have interchangeable roles in projective geometry. In physics, duality is the property of matter and electromagnetic radiation to be understood best through wave theory or particle theory. WORD FAMILYduality: dualities+/dual: dualism, duality, dually/dualism: dualisms, dualist, dualistic/dualist: dualists/dualistic: dualistically USAGE EXAMPLESI think it’s the composition and duality of the photograph that moved so many people. The Guardian(Dec 26, 2016) The stretch of inactivity showcased something else about Jackson: his maddening duality. Washington Post(Nov 18, 2016) But that duality is false: “In fact, they are perpetually passing into one another. . . . There is no wholly masculine man, no purely feminine woman.” The New Yorker(Nov 15, 2016) 1n being twofold; a classification into two opposed parts or subclasses Syn|Hyper dichotomy categorisation, categorization, classification a group of people or things arranged by class or category 2n (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry Hyper exchangeability, fungibility, interchangeability, interchangeableness the quality of being capable of exchange or interchange 3n (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 Syn|Hyper wave-particle duality property a basic or essential attribute shared by all members of a class |
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