HyperDic: great_circle

English > 1 sense of the expression great circle:
NOUNlocationgreat circlea circular line on the surface of a sphere formed by intersecting it with a plane passing through the center
English > great circle: 1 sense > noun 1, location
MeaningA circular line on the surface of a sphere formed by intersecting it with a plane passing through the center.
Narrowercelestial equator, equinoctial circle, equinoctial line, equinoctialThe great circle on the celestial sphere midway between the celestial poles
eclipticThe great circle representing the apparent annual path of the sun
equatorAn imaginary line around the Earth forming the great circle that is equidistant from the north and south poles
horizon, celestial horizonThe great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth
hour circleA great circle on the celestial sphere that passes through both celestial poles
meridian, line of longitudeAn imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator
vertical circleA great circle on the celestial sphere passing through the zenith and perpendicular to the horizon
BroaderlineA spatial location defined by a real or imaginary unidimensional extent

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