| top quark | (n) a hypothetical quark with a charge of +2/3 and a mass more than 100, 000 times that of an electron, Syn. truth quark |
| 顶夸克 | [顶 夸 克 / 頂 夸 克] top quark (phys.) [Add to Longdo] |
| トップクォーク;トップクオーク | [toppukuo-ku ; toppukuo-ku] (n) top quark [Add to Longdo] |