| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,802,245,569 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
ultraviolet |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.02 sec. |
ultravioletAn invisible band of radiation at the upper end of the visible light spectrum. With wavelengths from 10 to 400 nm, ultraviolet starts at the end of visible light and ends at the beginning of X-rays. The primary source of ultraviolet light is the sun. Although ultraviolet (UV) light is widely known as a disinfectant, it is also used to erase EPROM chips. After several minutes of exposure to UV light, the EPROM can be programmed again.
ultraviolet the part of the electromagnetic spectrum with wavelengths shorter than light but longer than X-rays; in the range 0.4 × 10--6 and 1 × 10--8 metres ultraviolet [¦əl·trə′vī·lət] (physics) Pertaining to ultraviolet radiation. Abbreviated UV. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | ||
|---|---|---|---|
| Tokyo, Japan, Feb 27, 2007 - (JCN) - Toshiba Lighting & Technology Corporation (Toshiba) has developed a metal halide lamp with a specialized clear coating that absorbs 99% of the ultraviolet rays that attract insects. Skin protects people from harmful environmental agents, bacteria, and ultraviolet rays. They are part of the electromagnetic spectrum, which also includes radio waves, infrared light, ultraviolet rays, X rays, and gamma rays. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|