Noun: Gregorian telescope gri'go-ree-un 'te-li,skowp
- 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