- (a.) Having reference to the geographical distribution of temperature, as exhibited by means of isotherms; as, an isothermal line; an isothermal chart.
- (a.) Relating to equality of temperature.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). isothermal. Retrieved September 25, 2026, from http://smartdefine.org/isothermal/definitions/2024033 |
| Chicago | Webster's. 2011. "isothermal" http://smartdefine.org/isothermal/definitions/2024033 (accessed September 25, 2026). |
| Harvard | Webster's 2011, isothermal, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/isothermal/definitions/2024033>. |
| MLA | Webster's. "isothermal" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/isothermal/definitions/2024033> |