miocene Meaning, Definition & Usage

  1. noun from 25 million to 13 million years ago; appearance of grazing mammals
    Miocene epoch.

WordNet


Mi"o*cene adjective
Etymology
Gr. less + new, fresh, recent.
Definitions
  1. (Geol.) Of or pertaining to the middle division of the Tertiary. -- n. The Miocene period. See Chart of Geology.

Webster 1913