verb (used with object), overpopulated, overpopulating.
to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.

1865–70; over- + populate

overpopulation, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
The second cage rats did not overpopulate and their behavior stayed normal throughout the test period.
Wild horses and burros can quickly overpopulate an area.
Hybrids are fast-growing and do not overpopulate as bluegill often do.
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