Definition of immersion
			
									- n. - The act of immersing, or the state of being immersed; a
   sinking within a fluid; a dipping; as, the immersion of Achilles in the
   Styx.
- n. - Submersion in water for the purpose of Christian
   baptism, as, practiced by the Baptists.
- n. - The state of being overhelmed or deeply absorbed; deep
   engagedness.
- n. - The dissapearance of a celestail body, by passing either
   behind another, as in the occultation of a star, or into its shadow, as
   in the eclipse of a satellite; -- opposed to emersion.