noun
- A hard natural coal that burns slowly and gives intense heat.
- synonyms: anthracite, anthracite coal
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). hard coal. Retrieved September 25, 2026, from http://smartdefine.org/hard_coal/definitions/1284108 |
| Chicago | WordNet. 2010. "hard coal" http://smartdefine.org/hard_coal/definitions/1284108 (accessed September 25, 2026). |
| Harvard | WordNet 2010, hard coal, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/hard_coal/definitions/1284108>. |
| MLA | WordNet. "hard coal" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/hard_coal/definitions/1284108> |