Definition of ecliptics:
(n) :
(astronomy) The great circle on the celestial sphere that is the mean apparent path of the sun as viewed from the earth.
(n) :
(astronomy) The plane in which this great circle lies.
(adj) :
Relating to an eclipse or the ecliptic.
(n) :
(geometry) A great circle drawn on a terrestrial globe, used for illustrating and solving astronomical problems.