Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun pliocene_epoch
1 sense of pliocene epoch
Sense 1
Pliocene, Pliocene epoch -- (from 13 million to 2 million years ago; growth of mountains; cooling of climate; more and larger mammals)
INSTANCE OF=> epoch -- (a unit of geological time that is a subdivision of a period and is itself divided into ages)