gravitational radiation

noun

Definition of gravitational radiation

: a series of gravitational waves also : the generation of such waves (as by a celestial object)

Examples of gravitational radiation in a Sentence

Recent Examples on the Web

The only possible mechanism for individual super-WIMPs to lose kinetic energy is to convert a tiny bit of it into gravitational radiation. Scientific American, "Readers Respond to "Climate Heretic" and Other Articles," 1 Mar. 2011 The first detection came in September 2015, when LIGO researchers sensed a burst of gravitational radiation from two massive black holes dozens of times as massive as the sun merging 1.3 billion light-years away. Adrian Cho, Science | AAAS, "Scientists may have spotted a black hole and a neutron star colliding," 16 Aug. 2019 Einstein first thought that objects cannot shed energy in the form of gravitational radiation, then changed his mind. Quanta Magazine, "Gravitational Waves Discovered at Long Last," 11 Feb. 2016 Collisions between black holes are powerful sources of gravitational radiation. Frank Wilczek, WSJ, "Black Holes May Have ‘Hair’ That We Can See," 3 Jan. 2019 Astronomers can use changes in pulsars’ time-keeping to point to gravitational radiation, which sweeps through an array of these dead stars in a telltale way. National Geographic, "Gravitational Waves Won the Physics Nobel Prize—Here's Why," 3 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gravitational radiation.' 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 gravitational radiation

1938, in the meaning defined above

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Last Updated

13 Sep 2019

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The first known use of gravitational radiation was in 1938

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