electromagnetic spectrum

noun

Definition of electromagnetic spectrum

: 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 The device is able to detect light from the mid-infrared region of the electromagnetic spectrum — unseen to the eye — and can reveal faint galaxies, stars in formation as well as planets orbiting other stars, known as exoplanets. New York Times, 30 Dec. 2021 Infrared light is part of the electromagnetic spectrum. Eric Killelea, San Antonio Express-News, 24 Dec. 2021 And while Hubble sees in the same optical wavelength as our eyes as well as the ultraviolet portion of the electromagnetic spectrum, JWST’s instruments are geared toward the lower-frequency infrared. Adam Mann, The Christian Science Monitor, 15 Dec. 2021 And and even using a part of the electromagnetic spectrum called millimeter waves to peer just into the skin. Robin Pomeroy, Scientific American, 14 Dec. 2021 Radar covers a large band of frequencies in the electromagnetic spectrum, and the bands, typically named with a Roman letter, often have unique capabilities. Kyle Mizokami, Popular Mechanics, 27 Oct. 2021 During its life cycle, a star emits light across the electromagnetic spectrum, including some waves invisible to the human eye. Jordan Mendoza, USA TODAY, 13 Oct. 2021 Systems to jam satellites and the electromagnetic spectrum can be purchased relatively easily, Clark told me. Diana Furchtgott-roth, Forbes, 30 Aug. 2021 Because of its wavelength, blue light is selectively scattered more than other colors within the visible portion of the electromagnetic spectrum. Marshall Shepherd, Forbes, 24 Sep. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electromagnetic spectrum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of electromagnetic spectrum

1924, in the meaning defined above

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Time Traveler for electromagnetic spectrum

Time Traveler

The first known use of electromagnetic spectrum was in 1924

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Dictionary Entries Near electromagnetic spectrum

electromagnetics

electromagnetic spectrum

electromagnetic theory of light

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Statistics for electromagnetic spectrum

Last Updated

10 Jan 2022

Cite this Entry

“Electromagnetic spectrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electromagnetic%20spectrum. Accessed 19 Jan. 2022.

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More Definitions for electromagnetic spectrum

electromagnetic spectrum

noun

Medical Definition of electromagnetic spectrum

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

More from Merriam-Webster on electromagnetic spectrum

Britannica.com: Encyclopedia article about electromagnetic spectrum

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