(n.) That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). optics. Retrieved September 21, 2026, from http://smartdefine.org/optics/definitions/2039172 |
| Chicago | Webster's. 2011. "optics" http://smartdefine.org/optics/definitions/2039172 (accessed September 21, 2026). |
| Harvard | Webster's 2011, optics, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/optics/definitions/2039172>. |
| MLA | Webster's. "optics" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/optics/definitions/2039172> |