gravitational wave

noun

: a disturbance in space-time in the form of a wave that propagates the gravitational field
Gravitational waves are a natural offshoot of the rubber-sheet construction of general relativity. Just as a massive object sitting on the fabric of spacetime creates a dimple, so moving or changing objects, under certain conditions, create wrinkles in the fabric. Those wrinkles, tiny distortions in spacetime, zoom away at the speed of light. Because these gravitational waves carry energy, anything emitting them will lose a tiny bit of its speed.Science

Examples of gravitational wave in a Sentence

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In the same way, atoms under the influence of a gravitational wave produce a directional pattern in their emitted light. Rupendra Brahambhatt, Interesting Engineering, 21 Mar. 2026 Researchers are excited about gravitational waves because these spacetime ripples constitute an entirely new way to study the universe, independent of the electromagnetic radiation (light) upon which most other astronomical observations rely. K. R. Callaway, Scientific American, 17 Mar. 2026 For example, gravitational waves that radiate away energy from binary neutron stars are a phenomenon of general relativity, which succeeded Newtonian gravity, and as such they are not considered by Newtonian physics. Keith Cooper, Space.com, 15 Mar. 2026 At the conference, there were several talks each day that delved into esoteric topics, such as gravitational wave physics, that would later dominate the field. Scott Neuman, NPR, 9 Mar. 2026 See All Example Sentences for gravitational wave

Word History

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of gravitational wave was in 1906

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Cite this Entry

“Gravitational wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gravitational%20wave. Accessed 30 Mar. 2026.

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