occultation
oc.cul.ta.tion \.a:k-(.)*l-'ta--sh*n\ n 1: the state of being hidden from view or lost to notice 2: the shutting off of the light of one celestial body by the intervention of another; esp : an eclipse of a star or planet by the moon
Webster's English Dictionaryoc.cul.ta.tion \.a:k-(.)*l-'ta--sh*n\ n 1: the state of being hidden from view or lost to notice 2: the shutting off of the light of one celestial body by the intervention of another; esp : an eclipse of a star or planet by the moon