Pronunciation: (i-klip'tik),[key] —n. 1. Astron. a. 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.
b. an analogous great circle on a terrestrial globe.
2. Astrol.the great circle of the ecliptic, along which are located the 12 houses and signs of the zodiac.
—adj.Also,e•clip'ti•cal. 1. pertaining to an eclipse.
2. pertaining to the ecliptic.