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.
- The act or an instance of immersing.
- The condition of being immersed.
- Baptism performed by totally submerging a person in water.
- Astronomy The obscuring of a celestial body by another or by the shadow of another.