Dictionary
Ce•no•zo•ic
Pronunciation: (sē"nu-zō'ik, sen"u-), [key] Geol.
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adj.
noting or pertaining to the present era, beginning 65 million years ago and characterized by the ascendancy of mammals. See table under
geologic time.
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n.
the Cenozoic Era or group of systems.
Also,Cainozoic.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.