noun
- A natural spring of water at a temperature of 70 F or above.
- synonyms: hot spring
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). thermal spring. Retrieved September 20, 2026, from http://smartdefine.org/thermal_spring/definitions/1315882 |
| Chicago | WordNet. 2010. "thermal spring" http://smartdefine.org/thermal_spring/definitions/1315882 (accessed September 20, 2026). |
| Harvard | WordNet 2010, thermal spring, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/thermal_spring/definitions/1315882>. |
| MLA | WordNet. "thermal spring" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/thermal_spring/definitions/1315882> |