- (a.) Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean.
- (a.) Of, pertaining to or designating, the system of the Plutonists; igneous; as, the Plutonic theory.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). plutonic. Retrieved September 25, 2026, from http://smartdefine.org/plutonic/definitions/2046721 |
| Chicago | Webster's. 2011. "plutonic" http://smartdefine.org/plutonic/definitions/2046721 (accessed September 25, 2026). |
| Harvard | Webster's 2011, plutonic, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/plutonic/definitions/2046721>. |
| MLA | Webster's. "plutonic" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/plutonic/definitions/2046721> |