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