(n.) An instrument of extreme sensibility, used to determine slight differences and degrees of heat. It is composed of alternate bars of antimony and bismuth or any two metals having different capacities for the conduction of heat, connected with an astatic galvanometer, which is very sensibly affected by the electric current induced in the system of bars when exposed even to the feeblest degrees of heat.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). thermopile. Retrieved September 21, 2026, from http://smartdefine.org/thermopile/definitions/2072007 |
| Chicago | Webster's. 2011. "thermopile" http://smartdefine.org/thermopile/definitions/2072007 (accessed September 21, 2026). |
| Harvard | Webster's 2011, thermopile, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/thermopile/definitions/2072007>. |
| MLA | Webster's. "thermopile" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/thermopile/definitions/2072007> |