rare. [f. next + -ATION.] The action of making, or fact of becoming, cosmopolitan.

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1865.  Detroit Free Press, 4 June, 2/2. The development of individual peoples has grown into one great whole—into a cosmopolitanization of all mankind.

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1889.  Cornhill Mag., Oct., 427. Symptoms of this dead-level cosmopolitanisation of the world’s fora.

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