1. (n.) Submersion in water; a dipping; as, the immersion of Achilles in the Styx\.

2. (n.) Submersion in water for the purpose of Christian baptism, as, practiced by the Baptists.

3. (n.) The state of being overwhelmed or deeply absorbed; deep engagedness.

4. (n.) The disappearance of a celestial 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.

absorbed attention absorption affusion application aspergation aspersion baptism baptismal gown baptismal regeneration baptistery baptizement bath bathing bedewing burial chrismal christening concentration contemplation dampening damping deep study deep thought deluge dewing dip dipping dousing drowning duck ducking dunking engagement engrossment engulfment flooding font hosing hosing down humidification immergence infusion intentness inundation involvement irrigation laving meditation moistening monomania obsession preoccupation profound thought rapt attention rinsing single-mindedness sinking souse sousing sparging spattering splashing splattering spraying sprinkling studiousness study submergence submersion swashing total immersion watering wetting