grav·i·ton (gr v  -t n )n. A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass. See Table at subatomic particle. [gravit(ation) + -on.] |
graviton [ˈgrævɪˌtɒn]
n
(Physics / General Physics) a postulated quantum of gravitational energy, usually considered to be a particle with zero charge and rest mass and a spin of 2 Compare photon
| graviton (grv-tn) 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. See also supersymmetry. See Table at subatomic particle. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | graviton - a gauge boson that mediates the (extremely weak) gravitational interactions between particles gauge boson - a particle that mediates the interaction of two elementary particles |
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