Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A hypothetical gauge boson that regulates the gravitational force. It would have a spin of 2 and zero rest mass.

from the GNU version of the Collaborative International Dictionary of English

  • n. A theoretical gauge boson that mediates the (extremely weak) gravitational interactions between particles; the quantum of the gravitational field, having zero rest mass and a spin of 2.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a gauge boson that mediates the (extremely weak) gravitational interactions between particles

Etymologies

gravit(ation) + -on1.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • Accordingly one attempts to treat the gravitational field as consisting of quantum - mechanical particles to which the name graviton has been given.

    RELATIVITY

  • Some, mostly string theorists, posit the existence of a massless particle they've dubbed the graviton and claim that it is responsible for mediating the force of gravity, a force that has unlimited range.

    Michael Zimmerman, Ph.D.: Gravity, Evolution and Religious Dogma

  • For this reason the putative quantum particle of a gravity wave, called the graviton, is said to have an intrinsic spin of two.

    A Dark, Misleading Force

  • So imagine we have a certain kind of particle called a graviton -- that's the kind of debris we expect to be ejected out if the extra dimensions are real.

    Brian Greene on string theory

  • This in effect corresponds to a giant graviton, which is required to "punch" a temporal hole to allow us to travel from the here-and-now to the if-and-when.

    Damn Interesting

  • In physics, the "graviton" is a hypothetical elementary particle that mediates the force of gravity in the framework of quantum field theory.

    American Chronicle

  • Additionally, you can enhance your ship with station modifications, which can all previously be seen in movies and TV shows, for example graviton generators.

    Guide Trek | SciFi, Fantasy & Horror Collectibles

  • The first step, then, is to let go of a literal vision of God, and to begin to know that the search for God is more akin to the search for love and connection than the search for a graviton or Big Foot.

    Rabbi Alan Lurie: Why Does God Hide?

  • A graviton wouldn't do the job even if I accepted RQFT, but a monopole of some variety would.

    Continuation…

  • I don't buy the graviton thing, and it is for all intents and purposes an unfalsifiable extrapolation based on a priori commitment to a standard model I rejected decades ago because it's not just 'incomplete', it's flat-out wrong.

    Continuation…

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