adjective Ce·no·zo·ic \ˌsē-nə-ˈzō-ik, ˌse-\

Definition of Cenozoic

  1. :  of, relating to, or being an era of geological history that extends from the beginning of the Tertiary (see 2tertiary 2) period to the present time and is marked by a rapid evolution of mammals and birds and of angiosperms and especially grasses and by little change in the invertebrates; also :  relating to the corresponding system of rocks — see geologic time table



Origin and Etymology of cenozoic

Greek kainos + English -zoic

First Known Use: 1841

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