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Miocene

Mi·o·cene

Miocene

 
pronunciation:
maI sin
parts of speech:
adjective, noun
part of speech: adjective
definition: of, relating to, or designating the geological epoch between the Oligocene and Pliocene of the Tertiary Period, from approximately 26 million to 5 million years ago, when mammals began to acquire modern characteristics.
 
part of speech: noun
definition: the Miocene Epoch, or the rock formations that date from that time.