You searched for: “excruciation”
excruciation (s) (noun), excruciations (pl)
The infliction of extremely painful punishment or suffering: "Torture is an instance of being in a state of excruciation."
This entry is located in the following units: -ation, -ization (-iz[e] + -ation); -isation (British spelling variation) (page 38) cruci-, crux (page 3)