quark
noun /kwɑːk/
/kwɑːrk/, /kwɔːrk/
- [countable] (physics) a very small part of matter (= a substance). There are several types of quark and it is thought that protons, neutrons, etc. are formed from them.Topics Physics and chemistryc2
- [uncountable] a type of soft cheese from central Europe, similar to curd cheeseTopics Foodc2
Word Origin1960s: a word invented by Murray Gell-Mann, the American theoretical physicist. Originally quork, the term was changed by association with the line “Three quarks for Muster Mark” in Joyce's Finnegans Wake (1939).