noun
- Extrusive igneous rock solidified near or on the surface of the Earth. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). volcanic rock. Retrieved September 21, 2026, from http://smartdefine.org/volcanic_rock/definitions/1248955 |
| Chicago | WordNet. 2010. "volcanic rock" http://smartdefine.org/volcanic_rock/definitions/1248955 (accessed September 21, 2026). |
| Harvard | WordNet 2010, volcanic rock, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/volcanic_rock/definitions/1248955>. |
| MLA | WordNet. "volcanic rock" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/volcanic_rock/definitions/1248955> |