Carboniferous can be categorized as an adjective.
Adjective |
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| carboniferous - of or relating to the Carboniferous geologic era; "carboniferous rock system" | ||
| carboniferous - relating to or consisting of or yielding carbon |
| # | Sentence | ||
|---|---|---|---|
| 1. | adj. | Carboniferous rock system. |
| Sentence | |
|---|---|
| adj. | |
| Carboniferous rock system. |
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