graviton

noun
grav·i·ton | \ˈgra-və-ˌtän \

Definition of graviton 

: a hypothetical particle with zero charge and rest mass that is held to be the quantum of the gravitational field

Examples of graviton in a Sentence

Recent Examples on the Web

For gravity, a particle called the graviton does the job. Lorenzo Bianchi, Newsweek, "Was This Stephen Hawking's Theory of Everything?," 19 Mar. 2018 One of the vibrational states of the string corresponds to the graviton, the quantum-mechanical particle carrying the gravitational force. Alexander Hellemans, Scientific American, "A Conversation with Thomas Hertog, One of Stephen Hawking’s Final Collaborators," 24 May 2018 In these theories, the graviton has a very small but nonzero mass. Katia Moskvitch, WIRED, "Troubled Times for Alternatives to Einstein’s Theory of Gravity," 6 May 2018 This happens because gravitons (the hypothetical particles that carry the gravitational force) leak into those dimensions. The Economist, "Particle physicsFundamental physics is frustrating physicists," 13 Jan. 2018 The neutron-star merger puts tough limits on these theories, Zumalacárregui said, since a massive graviton would travel more slowly than light. Katia Moskvitch, WIRED, "Troubled Times for Alternatives to Einstein’s Theory of Gravity," 6 May 2018 But when trying to calculate how these gravitons interact, nonsensical infinities appear. Lorenzo Bianchi, Newsweek, "Was This Stephen Hawking's Theory of Everything?," 19 Mar. 2018 Above all, a particular oscillation of the string could be interpreted as a graviton. Lorenzo Bianchi, Newsweek, "Was This Stephen Hawking's Theory of Everything?," 19 Mar. 2018 If gravitons were created in the LHC, which some theories suggest is possible, then signs of such leakage could be sought. The Economist, "Particle physicsFundamental physics is frustrating physicists," 13 Jan. 2018

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.

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First Known Use of graviton

1942, in the meaning defined above

History and Etymology for graviton

International Scientific Vocabulary gravity + -on entry 2

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The first known use of graviton was in 1942

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Britannica.com: Encyclopedia article about graviton

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