Definition of graviton
: a hypothetical particle with zero charge and rest mass that is held to be the quantum of the gravitational field
Recent Examples of graviton from the Web
One longtime effort has tried reconciling relativity—which describes gravity as a consequence of curved spacetime—with quantum mechanics by ascribing gravity to fields of particles called gravitons.
When Tony and Rhodey simultaneously exert a larger upward force, the emission rate of gravitons increases, to again neutralize their efforts.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'graviton.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of graviton
International Scientific Vocabulary gravity + 2-on
First Known Use: 1942See Words from the same year
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