(a.) Lying outside the visible spectrum at its violet end; -- said of rays more refrangible than the extreme violet rays of the spectrum.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ultraviolet. Retrieved September 22, 2026, from http://smartdefine.org/ultraviolet/definitions/2076089 |
| Chicago | Webster's. 2011. "ultraviolet" http://smartdefine.org/ultraviolet/definitions/2076089 (accessed September 22, 2026). |
| Harvard | Webster's 2011, ultraviolet, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/ultraviolet/definitions/2076089>. |
| MLA | Webster's. "ultraviolet" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/ultraviolet/definitions/2076089> |