adaptation · noun C or U /ˌæd.æpˈteɪ.ʃən/
adaptation
C1 the process or act of changing to suit a new situation
Dictionary example:
Evolution occurs as a result of adaptation to new environments.
Learner example:
This varies from one person to another, it depends on everyone's priorities and degree of adaptation [to] their new communities. (International English Language Testing System; C1; Arabic)