desensitization

noun
1
the process or fact of becoming less aware of something as a problem by becoming used to it
کاهش حساسیت, عادی‌سازی, حساسیت‌زدایی, عدم حساسیت
2
the process of treating somebody/something so that they will stop being sensitive to physical or chemical changes, or to a particular substance
حساسیت‌زدایی, کاهش حساسیت
allergy desensitization