Dictionary
Mi•o•cene
Pronunciation: (mī'u-sēn"), [key] Geol.
—
adj.
noting or pertaining to an epoch of the Tertiary Period, occurring from 25 to 10 million years ago, when grazing mammals became widespread. See table under
geologic time.
—
n.
the Miocene Epoch or Series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.