Noun immersion has 5 senses
  1. submergence, submerging, submersion, immersion - sinking until covered completely with water
    --1 is a kind of sinking
    --1 has particulars: dip
  2. ingress, immersion - (astronomy) the disappearance of a celestial body prior to an eclipse
    --2 is a kind of disappearance
    --2 is a part of eclipse, occultation
    Antonyms: egress, emersion
  3. concentration, engrossment, absorption, immersion - complete attention; intense mental effort
    --3 is a kind of attention
    --3 has particulars:
     focus, focusing, focussing, direction, centering; specialism; study
    Derived form: verb immerse2
  4. immersion - a form of baptism in which part or all of a person's body is submerged
    --4 is a kind of
    --4 has particulars: trine immersion
  5. submersion, immersion, ducking, dousing - the act of wetting something by submerging it
    --5 is a kind of wetting
    Derived form: verb immerse4