Meaning of MIGRATION in English

/ maɪˈgreɪʃn; NAmE / noun [ U , C ]


the movement of large numbers of people, birds or animals from one place to another :

seasonal migration

mass migrations


the fact of changing from one computer system to another; the act of moving programs, etc. from one computer system to another

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.