"Lenard tube" meaning in English

{
  "forms": [
    {
      "form": "Lenard tubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Lenard tube (plural Lenard tubes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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      ],
      "glosses": [
        "A tube for producing Lenard rays."
      ],
      "id": "en-Lenard_tube-en-noun-ZBKpRnrL",
      "links": [
        [
          "Lenard ray",
          "Lenard ray"
        ]
      ]
    }
  ],
  "word": "Lenard tube"
}

{
  "forms": [
    {
      "form": "Lenard tubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Lenard tube (plural Lenard tubes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
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      ],
      "glosses": [
        "A tube for producing Lenard rays."
      ],
      "links": [
        [
          "Lenard ray",
          "Lenard ray"
        ]
      ]
    }
  ],
  "word": "Lenard tube"
}