"Fortin barometer" meaning in English

{
  "etymology_text": "Invented by Jean Nicolas Fortin.",
  "forms": [
    {
      "form": "Fortin barometers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Fortin barometer (plural Fortin barometers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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      ],
      "glosses": [
        "A kind of barometer using a variable-displacement mercury cistern, usually constructed with a thumbscrew pressing on a leather diaphragm bottom, which compensates for displacement of mercury in the column with varying pressure."
      ],
      "id": "en-Fortin_barometer-en-noun-uAelIZ7o",
      "wikipedia": [
        "Jean Nicolas Fortin"
      ]
    }
  ],
  "word": "Fortin barometer"
}

{
  "etymology_text": "Invented by Jean Nicolas Fortin.",
  "forms": [
    {
      "form": "Fortin barometers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Fortin barometer (plural Fortin barometers)",
      "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",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "A kind of barometer using a variable-displacement mercury cistern, usually constructed with a thumbscrew pressing on a leather diaphragm bottom, which compensates for displacement of mercury in the column with varying pressure."
      ],
      "wikipedia": [
        "Jean Nicolas Fortin"
      ]
    }
  ],
  "word": "Fortin barometer"
}