Electromagnetic spectrum
WordNet
noun
(1) The entire frequency range of electromagnetic waves
WiktionaryText
Noun
electromagnetic spectrum
- The entire range of wavelengths of all known electromagnetic radiations extending from gamma rays through visible light, infrared, and radio waves, to X-rays. It is divided into 26 alphabetically designated bands, having frequencies of 0 to at least 1023 hertz.
See also
- cosmic ray
- gamma ray
- X-ray
- ultraviolet
- visible light
- infrared radiation
- microwave
- radio wave