Definition of beaver moon
: the first full moon of November The November full moon is known as the Beaver Moon. This was the time to set traps before the swamps froze to ensure a good supply of furs for the winter. A different interpretation is that this is the time beavers would be most active in the preparation for winter. — Chris Pagan, Tulsa (Oklahoma) World, 25 Nov. 2012
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First Known Use of beaver moon
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