Cenozoic: Meaning and Definition of


Pronunciation: (sē"nu-zō'ik, sen"u-), [key]
— Geol. Geol.
  1. noting or pertaining to the present era, beginning 65 million years ago and characterized by the ascendancy of mammals. See table under
  1. the Cenozoic Era or group of systems.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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