noun
compulsive act; compulsion
Psychiatric term for an action performed repeatedly in response to an obsession, as in OCD.
強迫行為として、何度も手を洗ってしまう。
As a compulsive act, I end up washing my hands over and over.
彼の強迫行為は、ドアの鍵を何度も確認することだ。
His compulsion is checking the door lock repeatedly.