Phan·er·o·zo·ic adjective \ˌfa-nə-rə-ˈzō-ik\
: of, relating to, or being an eon of geologic history that comprises the Paleozoic, Mesozoic, and Cenozoic or the corresponding systems of rocks — see geologic time table
— Phanerozoic noun
Origin of PHANEROZOIC
+ English 2-zoic
First Known Use: 1930
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