migration

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migration

the movement of people into (immigration) and out of (emigration) a country that serves to increase or decrease the country's POPULATION and labour force. For example, immigration was an important factor in the early colonization of Australia and New Zealand, and the USA and Canada.
Collins Dictionary of Economics, 4th ed. © C. Pass, B. Lowes, L. Davies 2005
References in periodicals archive ?
Martinez-Canut, "A study on factors associated with pathologic tooth migration," Journal of Clinical Periodontology, vol.
Physiological tooth migration and its significance for the development of occlusion.
* Adult cases with potential post orthodontic tooth migration