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(Astronomy) non-technical the total or partial obscuring of the sun by the moon
n., v. e•clipsed, e•clips•ing. n.
a. the obscuring of the light of the moon by the intervention of the earth between it and the sun (lunar eclipse) or the obscuring of the light of the sun by the intervention of the moon between it and a point on the earth (solar eclipse).
b. a similar phenomenon with respect to any other planet, its moon, and the sun.
c. the partial or complete interception of the light of one component of a binary star by the other.
2. any obscuring of light.
3. a reduction or loss of splendor, status, or reputation.v.t.
4. to cause to undergo eclipse: The moon eclipsed the sun.
5. to make less outstanding or important by comparison; surpass.
[1250–1300; < Old French eclipse < Latin eclīpsis < Greek ékleipsis, derivative of ekleípein to leave out, fail to appear]
See under eclipse.