/ Thesaurus / G Synonyms of glacial epoch Find synonyms for: Noun1. ice age, glacial period, glacial epoch, period, geological periodusage: any period of time during which glaciers covered a large part of the earth's surface; "the most recent ice age was during the Pleistocene"2. 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. Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language