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

Ultraviolet radiation falls on the electromagnetic spectrum between X-rays and visible light. —Michael Scaturro, Miami Herald, 15 June 2026

The required transition occurs at a wavelength of roughly 148 nanometers, deep in the vacuum ultraviolet region of the electromagnetic spectrum. —Rupendra Brahambhatt, Interesting Engineering, 13 June 2026

Ultraviolet radiation falls on the electromagnetic spectrum between X-rays and visible light. —Kff Health News, Oc Register, 10 June 2026

Starlink has 10,000 satellites, a commanding lead over Amazon’s 200-strong Leo constellation; Globalstar has a further 25, but the real prize is control over part of the electromagnetic spectrum. —Andrew Edgecliffe-Johnson, semafor.com, 16 Apr. 2026

Word History

First Known Use

1924, in the meaning defined above

Rhymes for electromagnetic spectrum

• electrum

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