(n.) An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). heliostat. Retrieved September 20, 2026, from http://smartdefine.org/heliostat/definitions/2015714 |
| Chicago | Webster's. 2011. "heliostat" http://smartdefine.org/heliostat/definitions/2015714 (accessed September 20, 2026). |
| Harvard | Webster's 2011, heliostat, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/heliostat/definitions/2015714>. |
| MLA | Webster's. "heliostat" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/heliostat/definitions/2015714> |