释义 |
violet ray in American English 1. the shortest ray of the visible spectrum 2. Loosely an ultraviolet ray Examples of 'violet ray' in a sentenceviolet ray The water-based solution coats the skin and hair for three months and is only visible under ultra violet rays.The polish, which reacts with the ultra violet rays in sunlight, is vivid red outdoors but barely visible once inside.There is efficient thermal and sound insulation, together with windows that cut out harmful ultra-violet rays while ensuring against heat loss. |