IMMIGRATION

immigration, in-migration

(noun) migration into a place (especially migration to a country of which you are not a native in order to settle there)

immigration

(noun) the body of immigrants arriving during a specified interval; “the increased immigration strengthened the colony”

Source: WordNet® 3.1

Etymology

Noun

immigration (countable and uncountable, plural immigrations)

The act of immigrating; the passing or coming into a country of which one is not native born for the purpose of permanent residence.

Source: Wiktionary

Im"mi*gra"tion, n. Etym: [Cf. F. immigration.]

Definition: The act of immigrating; the passing or coming into a country for the purpose of permanent residence. The immigrations of the Arabians into Europe. T. Warton.

Source: Webster’s Unabridged Dictionary 1913 Edition