naturalisation
noun
1.
the quality of being brought into conformity with nature
Derived from:
naturalise 2.
the proceeding whereby a foreigner is granted citizenship
Derived from:
naturalise 3.
the introduction of animals or plants to places where they flourish but are not indigenous
Derived from:
naturalise 4.
changing the pronunciation of a borrowed word to agree with the borrowers' phonology
Derived from:
naturalise