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English definition of “eclipse”

eclipse

noun [C] (SUN)    /ɪˈklɪps/
the situation when the sun disappears from view , either completely or partly , while the moon is moving between it and the Earth , or when the moon becomes darker while the shadow of the Earth moves over it: a solar / lunar eclipse On Wednesday there will be a total / partial eclipse of the sun .Astronomy - general words
(Definition of eclipse noun (SUN) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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