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  • Definition
    • migration :the movement of persons from one country or locality to another

      • migration :a group of people migrating together (especially in some given time period)

        • migration :(chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule

          • migration :the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding

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          • Derivative