The Clue
Utter engrossment (9 letter answer)
The Answer
IMMERSION
Tags
Notes
The answer IMMERSION is so rare that it appears less than once every 2500 puzzles.
Definition
IMMERSION as a noun:
1. (submergence, submerging, submersion, immersion) = sinking until covered completely with water
2. (ingress, immersion) = (astronomy) the disappearance of a celestial body prior to an eclipse
3. (concentration, engrossment, absorption, immersion) = complete attention; intense mental effort
4. a form of baptism in which part or all of a person's body is submerged
5. (submersion, immersion, ducking, dousing) = the act of wetting something by submerging it