'Immigrate' definitions:

Definition of 'immigrate'

(from WordNet)
verb
Migrate to a new environment; "only few plants can immigrate to the island"
verb
Introduce or send as immigrants; "Britain immigrated many colonists to America"
verb
Come into a new country and change residency; "Many people immigrated at the beginning of the 20th century" [ant: emigrate]

Definition of 'Immigrate'

From: GCIDE
  • Immigrate \Im"mi*grate\, v. t. [imp. & p. p. Immigrated; p. pr. & vb. n. Immigrating.] [L. immigrare, immigratum, to immigrate; pref. im- in + migrare to migrate. See Migrate.] To come into a country of which one is not a native, for the purpose of permanent residence. See Emigrate. [1913 Webster]