(n.) One who is versed in petrology.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). petrologist. Retrieved September 21, 2026, from http://smartdefine.org/petrologist/definitions/2044422 |
| Chicago | Webster's. 2011. "petrologist" http://smartdefine.org/petrologist/definitions/2044422 (accessed September 21, 2026). |
| Harvard | Webster's 2011, petrologist, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/petrologist/definitions/2044422>. |
| MLA | Webster's. "petrologist" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/petrologist/definitions/2044422> |