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Noun: Gregorian telescope  gri'go-ree-un 'te-li`skowp
  1. A reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the centre of the primary mirror
    - Cassegrainian telescope

Derived forms: Gregorian telescopes

Type of: reflecting telescope, reflector

Encyclopedia: Gregorian telescope

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