Definition of non-Euclidean in English:

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non-Euclidean

Pronunciation: /ˌnän yo͞oˈklidēən/

adjective

Geometry
Denying or going beyond Euclidean principles in geometry, especially in contravening the postulate that only one line through a given point can be parallel to a given line.
Example sentences
  • In 1915, Albert Einstein found it more convenient, the conventionalist would say, to develop his theory of general relativity using non-Euclidean rather than Euclidean geometry.
  • Beltrami in this 1868 paper did not set out to prove the consistency of non-Euclidean geometry or the independence of the Euclidean parallel postulate.
  • By chapter two he is proving Pythagoras' theorem from first principles and introducing non-Euclidean geometry.

For editors and proofreaders

Syllabification: non-Eu·clid·e·an

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