pleistocene epoch is a noun meaning "from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution". It carries one recorded sense.
from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution
Definitions, synonyms and semantic relations for pleistocene epoch come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.