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gravitational wave

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noun Astronomy, Physics.
  1. (in general relativity) a propagating wave of gravitational energy produced by accelerating masses, especially during catastrophic events, as the gravitational collapse of massive stars.
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Origin of gravitational wave

First recorded in 1895–1900
Also called gravity wave.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for gravitational wave

gravitational wave

noun
  1. physics another name for gravity wave
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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