occultation

noun
oc*cul*ta*tion \ ˌä-(ˌ)kəl-ˈtā-shən \
15th century{ds||1||}
  • the state of being hidden from view or lost to notice
  • the interruption of the light from a celestial body or of the signals from a spacecraft by the intervention of a celestial body; especially : an eclipse of a star or planet by the moon
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