car·bon·if·er·ous adjective \ˌkär-bə-ˈni-f(ə-)rəs\
: producing or containing carbon or coal
capitalized : of, relating to, or being the period of the Paleozoic era between the Devonian and the Permian or the corresponding system of rocks that includes coal beds — see geologic time table
— Carboniferous noun
First Known Use of CARBONIFEROUS
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