gravitational wave
noun/ˌɡrævɪteɪʃənl ˈweɪv/
/ˌɡrævɪteɪʃənl ˈweɪv/
(physics)- a wave through space-time caused by changes in the movement of objects in space
- Gravitational waves are produced when an extreme cosmic event occurs somewhere in the universe.
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gravitational wave