- Gregorian telescope
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a telescope similar in design to the Cassegrainian telescope but less widely used.[1755-65; named after James GREGORY; see -IAN]
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Universalium. 2010.
Gregorian telescope
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Gregorian telescope — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… … The Collaborative International Dictionary of English
Gregorian telescope — Gregorian Gre*go ri*an, a. [NL. Gregorianus, fr. Gregorius Gregory, Gr. ?: cf. F. gr[ e]gorien.] Pertaining to, or originated by, some person named Gregory, especially one of the popes of that name. [1913 Webster] {Gregorian calendar}, the… … The Collaborative International Dictionary of English
Gregorian telescope — The Gregorian telescope is a type of reflecting telescope designed by Scottish mathematician and astronomer, James Gregory in the 17th century.He described the design in his 1663 publication Optica Promota (The Advance of Optics). Early attempts… … Wikipedia
Gregorian telescope — /grəˌgɔriən ˈtɛləskoʊp/ (say gruh.gawreeuhn teluhskohp) noun a telescope similar to the Cassegrainian telescope, but less common. {named after James Gregory, 1638–75, Scottish mathematician and astronomer} …
Gregorian telescope — noun an early reflecting telescope in which light reflected from a concave elliptical secondary mirror passes through a hole in the primary mirror. Origin C18: named after the 17th cent. Scottish mathematician James Gregory … English new terms dictionary
Gregorian telescope — n. a reflecting telescope in which light reflected from a secondary mirror passes through a hole in a primary mirror. Etymology: J. Gregory, Sc. mathematician d. 1675, who devised it … Useful english dictionary
Telescope — Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913 Webster]… … The Collaborative International Dictionary of English
Telescope carp — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… … The Collaborative International Dictionary of English
Telescope fish — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… … The Collaborative International Dictionary of English
Telescope fly — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… … The Collaborative International Dictionary of English
