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great circle
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Great circle
A great circle, also known as an orthodrome or Riemannian circle, of a sphere is the intersection of the sphere and a plane which passes through the center point of the sphere. This partial case of a circle of a sphere is opposed to a small circle, the intersection of the sphere and a plane which does not pass through the center. Any diameter of any great circle coincides with a diameter of the sphere, and therefore all great circles have the same circumference as each other, and have the same center as the sphere. A great circle is the largest circle that can be drawn on any given sphere. Every circle in Euclidean 3-space is a great circle of exactly one sphere.
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great circle
Noun
1. a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center
(hypernym) line
(hyponym) celestial equator, equinoctial circle, equinoctial line, equinoctial
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great circle
A circle defined by the intersection of the surface of the Earth and any plane that passes through the center of the Earth. Note: On the idealized surface of the Earth, the shortest distance between two points lies along a great circle.
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great circle
Synonyms and related words:
anklet, aphelion, apogee, armlet, astronomical longitude, autumnal equinox, band, belt, bracelet, celestial equator, celestial longitude, celestial meridian, cincture, cingulum, circle, collar, collarband, colures, earring, ecliptic, equator, equinoctial, equinoctial circle, equinoctial colure, equinox, fascia, fillet, finger ring, galactic longitude, geocentric longitude, geodetic longitude, girdle, girt, girth, heliocentric longitude, hoop, longitude, meridian, neckband, necklace, nose ring, orbit, perigee, perihelion, period, quoit, ring, small circle, solstitial colure, trajectory, vernal equinox, wristband, wristlet, zodiac, zone
anklet, aphelion, apogee, armlet, astronomical longitude, autumnal equinox, band, belt, bracelet, celestial equator, celestial longitude, celestial meridian, cincture, cingulum, circle, collar, collarband, colures, earring, ecliptic, equator, equinoctial, equinoctial circle, equinoctial colure, equinox, fascia, fillet, finger ring, galactic longitude, geocentric longitude, geodetic longitude, girdle, girt, girth, heliocentric longitude, hoop, longitude, meridian, neckband, necklace, nose ring, orbit, perigee, perihelion, period, quoit, ring, small circle, solstitial colure, trajectory, vernal equinox, wristband, wristlet, zodiac, zone
Source: Moby Thesaurus, which is part of the Moby Project created by Grady Ward. In 1996 Grady Ward placed this thesaurus in the public domain.
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great circle
great circle
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