"N-ray" meaning in English

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  "etymology_text": "Compare X-ray. N stands for the University of Nancy in France, where the supposed discovery was made.",
  "forms": [
    {
      "form": "N-rays",
      "tags": [
        "plural"
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      "expansion": "N-ray (plural N-rays)",
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  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Obsolete scientific theories",
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      "glosses": [
        "A discredited hypothetical form of radiation described in 1903."
      ],
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          "discredit",
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          "radiation",
          "radiation"
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      ],
      "wikipedia": [
        "N-ray"
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  "word": "N-ray"
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  "etymology_text": "Compare X-ray. N stands for the University of Nancy in France, where the supposed discovery was made.",
  "forms": [
    {
      "form": "N-rays",
      "tags": [
        "plural"
      ]
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  ],
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      "expansion": "N-ray (plural N-rays)",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A discredited hypothetical form of radiation described in 1903."
      ],
      "links": [
        [
          "discredit",
          "discredit"
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        [
          "hypothetical",
          "hypothetical"
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          "radiation",
          "radiation"
        ]
      ],
      "wikipedia": [
        "N-ray"
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    }
  ],
  "word": "N-ray"
}