| [/ˏʌltrəˈvaɪələt; ˏʌltrəˋvaɪəlɪt/] adj [usu attrib通常作定语] 用法:
1 (physics 物) (of radiation) with a wavelengththat is just beyond the violet end of the visible spectrum （指辐射）紫外的:
ultraviolet rays, ie causing sun-tanning 紫外线. 用法:
2 of or using such radiation 紫外线的; 利用紫外线的:
an ultraviolet lamp 紫外线灯 *
ultraviolet treatment, ie for skin diseases 紫外线疗法（用以治疗皮肤病）. Cf 参看 infra-red (infra). |