Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun glacial_period

1 sense of glacial period

Sense 1
ice age, glacial period, glacial epoch -- (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")
       => period, geological period -- (a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods")