quark

quark¹
[kwɑːk, kwɔːk]
noun

(Physics)any of a number of subatomic particles carrying a fractional electric charge, postulated as building blocks of the hadrons. Quarks have not been directly observed but theoretical predictions based on their existence have been confirmed experimentally
(物理)夸克（基本粒子之一）
Three kinds of quark were originally proposed but this number has risen to account for properties such as strangeness and charm. Hadrons are thought to be built up from combinations of quarks. Although quarks have not been experimentally observed (it may be theoretically impossible for them to occur in the free state), many predictions of quark theory have been corroborated by experiments

语源

1960s: a word invented by Murray Gell-Mann. Originally quork, the term was changed by association with the line ‘Three quarks for Muster Mark’ in Joyce's Finnegans Wake (1939)

quark²
[kwɑːk]
noun

语源

热门查询

考试词汇表