Graviton meaning

grăvĭ-tŏn
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The massless, neutral gauge boson postulated to mediate the gravitational interaction; the quantum of gravitational energy.
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(particle physics) A theoretical subatomic particle with no charge or mass, postulated as the quantum of gravity.
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A hypothetical particle postulated in supergravity theory to be the quantum of gravitational interaction, mediating the gravitational force. Like all force carriers , the graviton is a boson. It is presumed to have an indefinitely long lifetime, zero electric charge, a spin of 2, and zero rest mass (thus travelling at the speed of light). The graviton has never been detected.
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(physics) A hypothetical gauge boson that regulates the gravitational force. It would have a spin of 2 and zero rest mass.
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Origin of graviton

  • gravit(ation) –on

    From American Heritage Dictionary of the English Language, 5th Edition