noun
- A sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). limestone. Retrieved September 20, 2026, from http://smartdefine.org/limestone/definitions/1248969 |
| Chicago | WordNet. 2010. "limestone" http://smartdefine.org/limestone/definitions/1248969 (accessed September 20, 2026). |
| Harvard | WordNet 2010, limestone, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/limestone/definitions/1248969>. |
| MLA | WordNet. "limestone" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/limestone/definitions/1248969> |