naturalize

verb

• 1admit (a foreigner) to the citizenship of a country:he was born in a foreign country and had never been naturalized (as adjective naturalized)a naturalized US citizen born in Germany
• [no object] (of a foreigner) be admitted to the citizenship of a country: the opportunity to naturalize as British

• 2 (usually as adjective naturalized) Biology establish (a plant or animal) so that it lives wild in a region where it is not indigenous:native and naturalized species black mustard has become naturalized in Britain and America
• (with reference to a cultivated plant) establish or become established in a natural situation: [with object]:this species of crocus naturalizes itself very easily

• 3alter (an adopted foreign word) so that it conforms more closely to the phonology or orthography of the adopting language: the stoccafisso of Liguria was naturalized in Nice as stocoficada

• 4regard as or cause to appear natural:although women do more childcare than men, feminists should beware of naturalizing that fact
• explain (a phenomenon) in a naturalistic way.