radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x-rays, and gamma rays.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use electromagnetic radiation in a sentence
At even longer wavelengths, electromagnetic radiation can interact with electronic systems and can be used to disable computers and control systems.Why ‘invisible’ electromagnetic weapons may be behind Havana syndrome | Iain Boyd/The Conversation | September 27, 2021 | Popular-Science
Unfortunately, this type of electromagnetic radiation does not leave a telltale trace like sunburn, which makes it difficult to be certain of the explanation.Why ‘invisible’ electromagnetic weapons may be behind Havana syndrome | Iain Boyd/The Conversation | September 27, 2021 | Popular-Science
Unlike traditional telescopes, which use lenses or mirrors to focus visible light, this contraption used metal and circuitry to collect interstellar radio waves, low frequency ripples of electromagnetic radiation.
The light you can see from a candle or light bulb is electromagnetic radiation.
You have no way to touch or feel or even suspect the existence of electromagnetic radiation, but that is where the voices are coming from.Your Brain Makes You a Different Person Every Day - Issue 91: The Amazing Brain | Steve Paulson | October 14, 2020 | Nautilus
What it does say is that our brains are sensitive to this electromagnetic radiation, which is fascinating.Study Finds Cellphone Radiation Changes Brain Activity | Claudia Kalb | February 22, 2011 | THE DAILY BEAST
Does this mean that the mental disturbances arise from some form of electromagnetic radiation?Disturbing Sun | Robert Shirley Richardson
That will stop most electromagnetic radiation, but not this stuff!Operation Terror | William Fitzgerald Jenkins
British Dictionary definitions for electromagnetic radiation
radiation consisting of self-sustaining oscillating electric and magnetic fields at right angles to each other and to the direction of propagation. It does not require a supporting medium and travels through empty space at the speed of light: See also photon
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 radiation
Energy in the form of transverse magnetic and electric waves. In a vacuum, these waves travel at the speed of light (which is itself a form of electromagnetic radiation). The acceleration of electric charges (such as alternating current in a radio transmitter) gives rise to electromagnetic radiation. Other common examples of electromagnetic radiation are x-rays, microwaves, and radio waves. A single unit, or quantum, of electromagnetic radiation is called a photon. See also electromagnetism polarization.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for electromagnetic radiation
Any type of electromagnetic wave.
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.