electromagnetic spectrum


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 Sofia observatory has instruments that were able to observe in just the right part of the electromagnetic spectrum to detect traces of water. Daniel Oberhaus, Wired, "There May Be Far More Water on the Moon Than NASA Thought," 26 Oct. 2020 In a series of installations, some of which are interactive, visitors can learn about everything from the electromagnetic spectrum to the fact that purple dye can be derived from snails. The New Yorker, "“The Nature of Color” at the Reopened American Museum of Natural History," 2 Oct. 2020 These devices can actually see across the electromagnetic spectrum, including visible and infrared light. Matt Simon, Wired, "Could a Tree Help Find a Decaying Corpse Nearby?," 3 Sep. 2020 Ultraviolet light is part of the electromagnetic spectrum emitted by the sun and can be produced by light bulbs, also. Maggie Fox, CNN, "Ultraviolet UVC sanitizers can be dangerous and have limited use against coronavirus, warns FDA," 20 Aug. 2020 But whether patterns are found in the radio or optical region of the electromagnetic spectrum doesn’t matter — such patterns could reveal intelligent activity regardless of their purpose, Siemion pointed out. Tom Siegfried, Smithsonian Magazine, "We’re Better Equipped to Find Extraterrestrial Life Now Than Ever Before," 11 Mar. 2020 Neocerambyx Gigas wings reflect not only sunlight in its harsh environment, but also energy in the infrared band of the electromagnetic spectrum, Zheng says. Courtney Linder, Popular Mechanics, "This Badass Beetle Could Keep Your Car Cool," 16 June 2020 The library team used multispectral imaging, a technique that captures different wavelengths of the electromagnetic spectrum including some invisible to the naked eye. Megan Gannon, Smithsonian Magazine, "Text Found on Supposedly Blank Dead Sea Scroll Fragments," 18 May 2020 OneWeb has priority over SpaceX for the bits of the electromagnetic spectrum needed to beam the internet from the heavens. The Economist, "Schumpeter Elon, Masa and Boris in low-Earth orbit," 11 July 2020

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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Statistics for electromagnetic spectrum

Cite this Entry

“Electromagnetic spectrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electromagnetic%20spectrum. Accessed 15 Jan. 2021.

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More Definitions for electromagnetic spectrum

electromagnetic spectrum


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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