noun
- Energy derived from the heat in the interior of the earth. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Geothermal energy. Retrieved September 25, 2026, from http://smartdefine.org/geothermal_energy/definitions/1235595 |
| Chicago | WordNet. 2010. "Geothermal energy" http://smartdefine.org/geothermal_energy/definitions/1235595 (accessed September 25, 2026). |
| Harvard | WordNet 2010, Geothermal energy, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/geothermal_energy/definitions/1235595>. |
| MLA | WordNet. "Geothermal energy" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/geothermal_energy/definitions/1235595> |