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  1. Rydberg atom

    • IPA[ˈridˌbərɡ ˌadəm]

    美式

    • n.
      an atom in a highly excited state in which one electron has almost sufficient energy to escape. Atoms, usually hydrogen atoms, in this Rydberg state are used in atomic research.
    • noun: Rydberg atom, plural noun: Rydberg atoms