Breadcrumb Home > Thesaurus > P Synonyms of pleistocene Find synonyms for: Noun1. Pleistocene, Pleistocene epoch, Glacial epochusage: from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolutionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of pleistocene (Dictionary) ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language