noun
exorcism; demon eradication
Primarily used in fantasy, science fiction, and supernatural contexts to refer to the act of driving out or destroying evil spirits, demons, or monsters. Not a common everyday term.
その退魔師は強力な退魔の術を使う。
The exorcist uses powerful exorcism techniques.
ゲームでは退魔の力で敵を倒す。
In the game, you defeat enemies with the power of demon eradication.
Compound of 退 (retreat, repel) and 魔 (demon, evil spirit). The exact historical derivation is uncertain; the term likely arose in modern fantasy and supernatural fiction.