Definition of "intermigration" [in•ter•mi•gra•tion]

• Reciprocal migration; interchange of dwelling place by migration (noun)

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• "Traditionally there were 50 small Latin communities which were united by common Latin cults and by the common Latin rights of intermarriage, contractual dealing, and intermigration."
• "But after very long intervals of time, and after great geographical changes, permitting much intermigration, the feebler will yield to the more dominant forms, and there will be nothing immutable in the distribution of organic beings."
• "And this continuity of the circumpolar land, with the consequent freedom under a more favourable climate for intermigration, will account for the supposed uniformity of the sub-arctic and temperate productions of the Old and New Worlds, at a period anterior to the Glacial epoch."