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

Whoever controls the electromagnetic spectrum, secures the provenance of data, and fields resilient sensing systems will shape not only military outcomes but the political economy of the coming decades. —Bojan Stojkovski, Interesting Engineering, 6 Nov. 2025

The problem with this concept is the fact that the region around ravenous black holes should emit strongly in the X-ray region of the electromagnetic spectrum, but that doesn't seem to be the case for little red dots or for BiRD. —Robert Lea, Space.com, 4 Nov. 2025

The human eye is mostly sensitive to only three bands of the electromagnetic spectrum—red, green, and blue (RGB)—in the visible range. —IEEE Spectrum, 23 Sep. 2025

Radio astronomy has revolutionized our understanding of the universe by opening up the vast electromagnetic spectrum that is invisible to the human eye. —David Szondy july 27, New Atlas, 27 July 2025

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