an·​ti·​quark | \ ˈan-tē-ˌkwärk, ˈan-ˌtī- How to pronounce antiquark (audio) \

Definition of antiquark

: the antiparticle of the quark

Examples of antiquark in a Sentence

Recent Examples on the Web The angle — θ, or theta — could have ranged anywhere from zero to 360 degrees, representing degrees of difference between quarks and mirror-image antiquarks. Quanta Magazine, "Axions Would Solve Another Major Problem in Physics," 17 Mar. 2020 The kaon, a special case of meson particle, is made of one quark and one antiquark. Caroline Delbert, Popular Mechanics, "Something Weird Just Happened That We Can't Really Explain With Existing Physics," 6 Mar. 2020 The electron, quark, and muon, for example, are paired with the positron, antiquark, and antimuon, respectively. Sophia Chen, Wired, "Physicists Take Their Closest Look Yet at an Antimatter Atom," 19 Feb. 2020 Thanks to the uncertainties inherent in quantum mechanics, its interior roils with countless gluons and quark-antiquark pairs that flit in and out of existence too quickly to be directly observed. Adrian Cho, Science | AAAS, "Department of Energy picks New York over Virginia for site of new particle collider," 9 Jan. 2020 And, as with complementary colors like blue and yellow, quarks pair with antiquarks to form colorless mesons. Quanta Magazine, "Quark Quartet Fuels Quantum Feud," 27 Aug. 2014 Because of quantum uncertainty, the grand unified force associated with this fundamental symmetry should occasionally resurface, spontaneously morphing a quark or antiquark into a corresponding lepton or antilepton. Quanta Magazine, "Grand Unification Dream Kept at Bay," 15 Dec. 2016 Quarks and antiquarks behave far too symmetrically to account for the universe’s matter-antimatter imbalance. Natalie Wolchover, WIRED, "New Neutrino Anomaly Hints at a Matter-Antimatter Rift," 31 July 2016 Discoveries made at the LHC include the vaunted Higgs boson as well as other exotic particles including pentaquarks and antiquarks. Jason Daley, Smithsonian, "Large Hadron Collider Gets “Open Heart Surgery”," 3 Mar. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antiquark.' 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 antiquark

1964, in the meaning defined above

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The first known use of antiquark was in 1964

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Cite this Entry

“Antiquark.” Dictionary, Merriam-Webster, Accessed 8 Aug. 2020.

More from Merriam-Webster on antiquark

Rhyming Dictionary: Words that rhyme with antiquark Encyclopedia article about antiquark

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