electromagnetic spectrum
the entire spectrum, considered as a continuum, of all kinds of electric, magnetic, and visible radiation, from gamma rays having a wavelength of 0.001 angstrom to long waves having a wavelength of more than 1 million km.
Origin of electromagnetic spectrum
1Words Nearby electromagnetic spectrum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use electromagnetic spectrum in a sentence
In addition to domains like sea, air, land, and space, or harder-to-see domains like cyberspace and the electromagnetic spectrum, these operations also take place in time, of course.
Here’s how the US Army plans on winning the wars of our future | Rob Verger | August 12, 2021 | Popular-ScienceThis kind of attack involves military tools on land, air, and in space, as well as communication across the electromagnetic spectrum.
Here’s how the US Army plans on winning the wars of our future | Rob Verger | August 12, 2021 | Popular-ScienceAll these lie on the electromagnetic spectrum, and wavelengths aside, there’s fundamentally no difference between them.
A new microwave scanner can track moving objects through walls, Superman-style | Monroe Hammond | July 9, 2021 | Popular-ScienceThis energy tapping is possible across the electromagnetic spectrum.
New device gets power from 5G signals grabbed from the air | Kathryn Hulick | May 17, 2021 | Science News For StudentsIt’s entirely possible that distant civilizations could be sending out similar signals, or even trying to transmit messages on purpose, since they’ll be dealing with the same electromagnetic spectrum that we are.
Landsat satellites carry sensors that record “light,” or portions of the electromagnetic spectrum, as it reflects off the Earth.
Deserts | A. S. Walker
British Dictionary definitions for electromagnetic spectrum
the complete range of electromagnetic radiation from the longest radio waves (wavelength 10 5 metres) to the shortest gamma radiation (wavelength 10 –13 metre)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for electromagnetic spectrum
The entire range of electromagnetic radiation. At one end of the spectrum are gamma rays, which have the shortest wavelengths and high frequencies. At the other end are radio waves, which have the longest wavelengths and low frequencies. Visible light is near the center of the spectrum.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for electromagnetic spectrum
The family of electromagnetic waves. The electromagnetic spectrum, starting from the waves with the longest wavelengths (and least energy), consists of radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-rays, and gamma radiation. Members of the family differ from one another only in their wavelength, or frequency. For example, the wavelength of blue light is roughly half that of red light, but the waves corresponding to the two colors are otherwise identical.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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