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Preface

Preface

quark1 /kwa:k/ n. Physics any of a group of (originally three) postulated components of elementary particles Quarks are held to carry a charge one-third or two-thirds that of the proton Many predictions of this theory have been corroborated by experiments but free quarks have yet to be observed. In a sense, quark theory recapitulates at a deeper level efforts earlier this century to explain all atomic properties in terms of electrons, protons, and neutrons [coined by M Gell-Mann, 1964, from phrase 'Three quarks for Muster Mark!'in James Joyce's Finnegans Wake (1939)]

quark2 /kwa:k/ n. a type of low-fat curd cheese.

From The Oxford Encyclopedic English Dictionary, 1991, Oxford University Press


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