occultation
UK /ˌɒkəlˈteɪʃ(ə)n/ · US /ˌɑkəlˈteɪʃ(ə)n/ noun
Forms occultations accultation
- noun (astronomy) An astronomical event that occurs when one celestial object is hidden by another celestial object that passes between it and the observer when the nearer object appears larger and completely hides the more distant object.
- noun The state of being occult (“hidden, undetected”).
- noun (Shia Islam) The disappearance of the Twelfth Imam, or Mahdi, who is believed alive and present in this world, but hidden until his reappearance at the end of time.
Synonyms
Etymology
From Latin occultātiōnem, accusative singular of occultātiō (“concealment; insinuation”), from occultāre, present active infinitive of occultō (“to conceal, hide”); analysable as occult + -ation.
Webster’s 1913
- noun 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.
- noun Fig.: The state of being occult.
Etymology [L. occultatio a hiding, fr. occultare, v. intens. of occulere: cf.F. occultation. See Occult.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “occultation”, CC BY-SA 4.0. Details