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graviton

Syllabification: grav·i·ton
Pronunciation: /ˈɡravəˌtän
 
/

Definition of graviton in English:

noun

Physics
A hypothetical quantum of gravitational energy, regarded as a particle.
Example sentences
  • Both represent the quantized field of a fundamental force: photons the electromagnetic field and gravitons the gravitational field.
  • But the black hole will eventually evaporate, leaving only photons, gravitons and other elementary particles as products of the decay.
  • These waves are literally gravitons - the hypothetical particles that carry the gravitational force - that have been stretched to macroscopic lengths by the cosmic expansion.

Origin

1940s: from gravitation + -on.

Definition of graviton in:

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