Cenozoic has 4 different meanings across 3 categories:
Noun · Adjective · Proper Noun
approximately the last 63 million years
of or relating to or denoting the Cenozoic era
Of or pertaining to the Cenozoic era.
A geologic era within the Phanerozoic eon comprising the Paleogene and Neogene periods from about 65 million years ago to the present, when the continents moved to their current position and modern plants and animals evolved.