noun
- From 345 million to 280 million years ago.
- synonyms: Carboniferous period
adjective
- Of or relating to the Carboniferous geologic era.
- usage: "carboniferous rock system"
- Relating to or consisting of or yielding carbon.
- synonyms: carbonaceous, carbonous, carbonic
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). carboniferous. Retrieved September 20, 2026, from http://smartdefine.org/carboniferous/definitions/1249821 |
| Chicago | WordNet. 2010. "carboniferous" http://smartdefine.org/carboniferous/definitions/1249821 (accessed September 20, 2026). |
| Harvard | WordNet 2010, carboniferous, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/carboniferous/definitions/1249821>. |
| MLA | WordNet. "carboniferous" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/carboniferous/definitions/1249821> |