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 Then, a decade later, another group saw hints of puzzling variations in the down-to-up antiquark ratio. Quanta Magazine, 24 Feb. 2021 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, 17 Mar. 2020 The kaon, a special case of meson particle, is made of one quark and one antiquark. Caroline Delbert, Popular Mechanics, 6 Mar. 2020 The electron, quark, and muon, for example, are paired with the positron, antiquark, and antimuon, respectively. Sophia Chen, Wired, 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, 9 Jan. 2020 And, as with complementary colors like blue and yellow, quarks pair with antiquarks to form colorless mesons. Quanta Magazine, 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, 15 Dec. 2016 Quarks and antiquarks behave far too symmetrically to account for the universe’s matter-antimatter imbalance. Natalie Wolchover, WIRED, 31 July 2016

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 2 Aug. 2021.

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