electromagnetic spectrum

noun

: the entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio waves and including visible light

Examples of electromagnetic spectrum in a Sentence

Recent Examples on the Web

Colossal Corona The highest resolution image of all, this image of the sun's corona — its outer and hottest atmosphere — was taken in the extreme ultraviolet region of the electromagnetic spectrum. —Jamie Carter, Forbes, 27 Nov. 2024

Plastics, specifically, have special attributes in the shortwave infrared (SWIR) electromagnetic spectrum that aren’t present in sand or other organic debris. —Mack Degeurin, Popular Science, 30 Oct. 2024

Light and Color Visible light is a narrow band of the electromagnetic spectrum with wavelengths from 700 to 380 nm. —Rhett Allain, WIRED, 11 Oct. 2024

The cosmos is filled with galaxies that glow across the electromagnetic spectrum, creating the ultimate dark-sky limit. —Phil Plait, Scientific American, 4 Oct. 2024

Word History

First Known Use

1924, in the meaning defined above

Kids Definition

electromagnetic spectrum

noun

: the entire range of wavelengths or frequencies of electromagnetic waves extending from gamma rays to the longest radio waves and including visible light

Medical Definition

electromagnetic spectrum

noun

: the entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio waves and including visible light