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ecliptic

e·clip·tic [ i klíptik ]


noun 
Definition:
 
path of the Sun's annual motion: the apparent path of the Sun's annual motion relative to the stars, shown as a circle passing through the center of the imaginary sphere celestial sphere containing all the astronomical objects. Eclipses of the Sun or Moon can occur only when the Moon crosses the ecliptic.



adjective 
Definition:
 
of an eclipse: relating to, involving, or typical of an eclipse

[14th century. Via Latin< Greek ekluptikos< ekleipein (see eclipse)]
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