Wiktionary英语词典
收录 1,329,381 个英语单词，来自Wiktionary的英文释义、IPA发音、词源、词形变化和词汇关系数据
U开头单词
(共36,822个)
plural of ultravacuum
ultravast
英 /ˈʌltɹəvɑːst/
Extremely or exceedingly vast; of utmost vastness.
Extrordinarily vicious.
Very vigilant.
supervillain
plural of ultravillain
Unnecessary, unprovoked (usually brutal) violence; violent acts simply for the thrill and entertainm...
Extremely violent; of utmost violence.
ultraviolet
英 /ˌʌltɹəˈvaɪələt/|/ˌʌltɹəˈvaɪlət/
Of electromagnetic radiation beyond (higher in frequency than) light visible to the human eye; radia...
the longest ultraviolet wavelength, penetrating the deepest and causing the vast majority of UV radi...
An observational branch of astronomy, which deals with the study of ultraviolet emission from celest...
The second shortest ultraviolet wavelength and the main cause of sunburn.
the shortest ultraviolet wavelength, unable to penetrate the Earth's atmosphere
A fault in classical physics, from the Rayleigh's law/Rayleigh-Jeans law outcomes at short wavelengt...
Light in the ultraviolet part of the spectrum.
plural of ultraviolet light
A form of non-ionizing radiation emitted by the sun and other artificial sources.
plural of ultraviolet
Extremely virile.
The quality of being ultravirile.