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Webster's Dictionary (1865)

E-mér’sion, n.

noun

n. [From Lat. emergere, emersum; Fr. émersion, Sp. emersion, It. emersione. See EMERGE.]

  1. The act of rising out of, or coming forth to view from, any enveloping or overshadowing substance or body; as, emersion from water; emersion from obscurity. “Emersion upon the stage of authorship.” De Quincey.
  2. (Astron.) The reappearance of a heavenly body after an eclipse or occultation; as, the emersion of the moon from the shadow of the earth; the emersion of a star from behind the moon.