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Pleistocene

Pleistocene

WordNet



noun


(1)   From two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution
Wiktonary



Adjective



  1. Of a geologic epoch within the Neogene period from about 1.7 million to 11,000 years ago; marked by the evolution of man, and the extinction of the large mammals.