(n.) The application of light for therapeutic purposes, especially for treating diseases of the skin.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). phototherapy. Retrieved September 25, 2026, from http://smartdefine.org/phototherapy/definitions/2045017 |
| Chicago | Webster's. 2011. "phototherapy" http://smartdefine.org/phototherapy/definitions/2045017 (accessed September 25, 2026). |
| Harvard | Webster's 2011, phototherapy, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/phototherapy/definitions/2045017>. |
| MLA | Webster's. "phototherapy" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/phototherapy/definitions/2045017> |