noun
- Energy derived from sources that do not use up natural resources or harm the environment. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). alternative energy. Retrieved September 21, 2026, from http://smartdefine.org/alternative_energy/definitions/1235431 |
| Chicago | WordNet. 2010. "alternative energy" http://smartdefine.org/alternative_energy/definitions/1235431 (accessed September 21, 2026). |
| Harvard | WordNet 2010, alternative energy, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/alternative_energy/definitions/1235431>. |
| MLA | WordNet. "alternative energy" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/alternative_energy/definitions/1235431> |