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

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.

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
  

great circle
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