occultation > define
noun
- One celestial body obscures another.
- synonyms: eclipse
by WordNet 3.0 © 2006 by Princeton University
- (n.) Fig.: The state of being occult.
- (n.) The hiding of a heavenly body from sight by the intervention of some other of the heavenly bodies; -- applied especially to eclipses of stars and planets by the moon, and to the eclipses of satellites of planets by their primaries.
by Webster's Revised Unabridged Dictionary