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  1. duality love

Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. n. The quality or character of being twofold; dichotomy.

Century Dictionary and Cyclopedia

  1. n. The state of being two, or of being divided into two; twofold division or character; twoness.

Wiktionary

  1. n. A classification into two subclasses or opposed parts.
  2. n. projective geometry The interchangeability of points and planes.
  3. n. mathematics, physics The mathematical equivalence of two seemingly different theoretical descriptions of a physical system.

GNU Webster's 1913

  1. n. The quality or condition of being two or twofold; dual character or usage.

WordNet 3.0

  1. 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
  2. n. being twofold; a classification into two opposed parts or subclasses
  3. n. (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry

Etymologies

  1. From Latin duālitās. (Wiktionary)

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‘duality’ has been looked up 2954 times, loved by 10 people, added to 13 lists, and has a Scrabble score of 11.