Definition of quark
: any of several elementary particles that are postulated to come in pairs (as in the up and down varieties) of similar mass with one member having a charge of +2⁄3 and the other a charge of −1⁄3 and are held to make up hadrons
Recent Examples of quark from the Web
Physicists explain the behavior of quarks – the particles that make up atomic nuclei – and the gluons that hold them together with a theory called quantum chromodynamics.
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Origin and Etymology of quark
coined by Murray Gell-Mann
First Known Use: 1964
QUARK Defined for English Language Learners
Definition of quark for English Language Learners
physics : any one of several types of very small particles that make up matter
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