- (n.) The measurement of the force of solar radiation.
- (n.) The measurement of the chemical or actinic energy of light.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). actinometry. Retrieved September 20, 2026, from http://smartdefine.org/actinometry/definitions/1970679 |
| Chicago | Webster's. 2011. "actinometry" http://smartdefine.org/actinometry/definitions/1970679 (accessed September 20, 2026). |
| Harvard | Webster's 2011, actinometry, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/actinometry/definitions/1970679>. |
| MLA | Webster's. "actinometry" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/actinometry/definitions/1970679> |