Desensitization (noun)

1. The process of decreasing or eliminating a person's sensitivity to a stimulus, typically through repeated exposure to it.
2. The reduction in the responsiveness of a sensory receptor following prolonged or repeated stimulation.

Origin:

From the prefix "de-" meaning "reverse" or "removal" and the noun "sensitization", which refers to the process of becoming sensitive.

Examples:

1. The therapy involves desensitization of the patient to the allergens that cause the allergic reaction.
2. The desensitization treatment helped the soldier to cope with the loud sounds of gunfire.
3. The patient's fear of flying was treated by means of desensitization therapy.
4. A side effect of the medication is desensitization of the patient to the pain.
5. The desensitization of the nerve endings in the skin can lead to the loss of sensation.