- the great circle formed by the intersection of the plane of the earth's orbit with the celestial sphere; the apparent annual path of the sun in the heavens.
- an analogous great circle on a terrestrial globe.
adjective Also e·clip·ti·cal.
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Origin of ecliptic
OTHER WORDS FROM ecliptic
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How to use ecliptic in a sentence
The inclination of the plane of the satellites to the ecliptic is 98°, and the planet ascends almost in the plane of the ecliptic.Mysterious Psychic Forces|Camille Flammarion
Each station was assigned a uniform length of 13° 20' on the ecliptic, and a denomination, generally derived from mythology.
How many days will be required for it to move completely around the ecliptic from vernal equinox back to vernal equinox again?
If the obliquity of the ecliptic were made 10 greater, what would be the effect upon the seasons in the temperate zones?
The purpose of the signs of the zodiac is to show the position of the sun in the ecliptic at different times.Astronomical Lore in Chaucer|Florence M. Grimm
British Dictionary definitions for ecliptic
- the great circle on the celestial sphere representing the apparent annual path of the sun relative to the stars. It is inclined at 23.45° to the celestial equator. The poles of the ecliptic lie on the celestial sphere due north and south of the plane of the ecliptic
- (as modifier)the ecliptic plane