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Word: carboniferous
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Meaning:
Adjective:
- Containing or producing carbon
- geology of a geologic period within the Paleozoic era; comprises the lower, middle and upper Mississippian and lower, middle and upper Pennsylvanian epochs from about 345 to 280 million years ago, when coal was laid down
Source: Wiktionary
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Noun:
- geology the Carboniferous period
Source: Wiktionary
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