noun
- An instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect. ).
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). actinometer. Retrieved September 20, 2026, from http://smartdefine.org/actinometer/definitions/1201065 |
| Chicago | WordNet. 2010. "actinometer" http://smartdefine.org/actinometer/definitions/1201065 (accessed September 20, 2026). |
| Harvard | WordNet 2010, actinometer, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/actinometer/definitions/1201065>. |
| MLA | WordNet. "actinometer" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/actinometer/definitions/1201065> |