immersion
(noun)
noun
1. sinking until covered completely with water
Similar word(s): submergence, submerging, submersion
Definition categories: event, sinking
2. (astronomy) the disappearance of a celestial body prior to an eclipse
Similar word(s): ingress
Definition categories: event, disappearance
3. complete attention; intense mental effort
Similar word(s): absorption, concentration, engrossment
Definition categories: thought, attention
4. a form of baptism in which part or all of a person's body is submerged
Definition categories: act, baptism
5. the act of wetting something by submerging it
Similar word(s): dousing, ducking, submersion