"hydrogen spectral series" meaning in All languages combined

{
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    {
      "form": "hydrogen spectral series",
      "tags": [
        "plural"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "kind": "other",
          "name": "English entries with incorrect language header",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Hydrogen",
          "orig": "en:Hydrogen",
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            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "Any of several series of spectral lines of hydrogen that correspond to quantum transitions between the various allowed energy levels of the hydrogen atom."
      ],
      "id": "en-hydrogen_spectral_series-en-noun-A9eG5i~n",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "spectral line",
          "spectral line"
        ],
        [
          "quantum",
          "quantum"
        ],
        [
          "transition",
          "transition"
        ],
        [
          "energy level",
          "energy level"
        ],
        [
          "atom",
          "atom"
        ]
      ],
      "raw_glosses": [
        "(physics) Any of several series of spectral lines of hydrogen that correspond to quantum transitions between the various allowed energy levels of the hydrogen atom."
      ],
      "related": [
        {
          "word": "Lyman series"
        },
        {
          "word": "Balmer series"
        },
        {
          "word": "Paschen series"
        },
        {
          "word": "Brackett series"
        },
        {
          "word": "Pfund series"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "hydrogen spectral series"
      ]
    }
  ],
  "word": "hydrogen spectral series"
}

{
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      "form": "hydrogen spectral series",
      "tags": [
        "plural"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Lyman series"
    },
    {
      "word": "Balmer series"
    },
    {
      "word": "Paschen series"
    },
    {
      "word": "Brackett series"
    },
    {
      "word": "Pfund series"
    }
  ],
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        "English nouns",
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      "glosses": [
        "Any of several series of spectral lines of hydrogen that correspond to quantum transitions between the various allowed energy levels of the hydrogen atom."
      ],
      "links": [
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          "physics",
          "physics"
        ],
        [
          "spectral line",
          "spectral line"
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        [
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        ],
        [
          "energy level",
          "energy level"
        ],
        [
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        ]
      ],
      "raw_glosses": [
        "(physics) Any of several series of spectral lines of hydrogen that correspond to quantum transitions between the various allowed energy levels of the hydrogen atom."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "hydrogen spectral series"
      ]
    }
  ],
  "word": "hydrogen spectral series"
}