Yahoo香港字典 搜尋

  1. proton

    • IPA[ˈprəʊtɒn]

    英式

    • n.
      a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron.
    • noun: proton, plural noun: protons

    • 更多解釋
    • IPA[ˈprōˌtän]

    美式

    • n.
      a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge ...

    Oxford American Dictionary