Electromagnetic spectrum

noun

Noun

1. 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