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quadrature noun

  /ˈkwɑd.ɹə.t͡ʃɚ/ , /ˈkwɑd.ɹəˌt͡ʃʊɚ/ , /ˈkwɒd.ɹə.t͡ʃə(ɹ)/ , /ˈkwɒd.ɹəˌtjʊə(ɹ)/
  • (astronomy) A situation in which the directions of two celestial bodies (or a celestial body and the Sun) form a right angle from the perspective of the observer.
Quadratur
  • The process of making something square; squaring.
Quadrieren
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