adj.
Pronunciation: ' m ī - ə - ˌ s ē n
Function: adjective
Etymology: mio- (fr. Greek mei ō n less) + -cene ― more at MEIOSIS
Date: 1831
: of, relating to, or being an epoch of the Tertiary between the Pliocene and the Oligocene or the corresponding series of rocks ― see GEOLOGIC TIME table
– Miocene noun