| 释义 |
ul·tra·violet
I. \“+\ adjective
Etymology: ultra- + violet
1. of radiation : beyond the visible spectrum at its violet end : having a wavelength shorter than those of visible light and longer than those of X rays — compare infrared
2. : relating to, producing, or employing ultraviolet radiation
< ultraviolet lamp >
< ultraviolet filter >
II. noun
: ultraviolet radiation |