Source : Webster's Revised Unabridged Dictionary (1913)

Expatriation \Ex*pa`tri*a"tion\, n. [Cf. F. expatriation.]
   The act of banishing, or the state of banishment; especially,
   the forsaking of one's own country with a renunciation of
   allegiance.

         Expatriation was a heavy ransom to pay for the rights
         of their minds and souls.                --Palfrey.

Source : WordNet®

expatriation
     n 1: the act of expelling a person from their native land; "men
          in exile dream of hope"; "his deportation to a penal
          colony"; "the expatriation of wealthy farmers"; "the
          sentence was one of transportation for life" [syn: {exile},
           {deportation}, {transportation}]
     2: migration from a place (especially migration from your
        native country in order to settle in another) [syn: {emigration},
         {out-migration}]