habituationnoun [ U ]
uk/həˌbɪtʃ.uˈeɪ.ʃən//həˌbɪtʃ.uˈeɪ.ʃən/the process of people or animals becoming used to something, so that they no longer find it unpleasant or think it is a threat:
Increased sightings of coyotes are the result of habituation, as coyotes become accustomed to humans and unafraid of them.