mad hatter disease in English

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Etymology: "During the 18th to 20th centuries, hat makers used mercury to stiffen felt for hats. They used a type of mercury called mercuric nitrate and worked in poorly ventilated rooms. Over time, the hatters inhaled mercury vapors. Many developed symptoms of chronic mercury poisoning, including psychosis, excitability, and tremors. These symptoms became so common in hatters that the phrase “mad as a hatter” was born." Head templates: {{en-noun|-|head=mad hatter disease}} mad hatter disease (uncountable)

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{
  "etymology_text": "\"During the 18th to 20th centuries, hat makers used mercury to stiffen felt for hats. They used a type of mercury called mercuric nitrate and worked in poorly ventilated rooms. Over time, the hatters inhaled mercury vapors. Many developed symptoms of chronic mercury poisoning, including psychosis, excitability, and tremors. These symptoms became so common in hatters that the phrase “mad as a hatter” was born.\"",
  "head_templates": [
    {
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        "1": "-",
        "head": "mad hatter disease"
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      "expansion": "mad hatter disease (uncountable)",
      "name": "en-noun"
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mercury (element)",
          "orig": "en:Mercury (element)",
          "parents": [
            "Transition metals",
            "Chemical elements",
            "Metals",
            "Matter",
            "Metallurgy",
            "Chemistry",
            "Nature",
            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "erethism (neurological disorder from mercury poisoning)"
      ],
      "id": "en-mad_hatter_disease-en-noun-rRpWNz50",
      "links": [
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          "erethism"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "mad hatter disease"
}

[Show JSON for raw wiktextract data ▼] [Hide JSON for raw wiktextract data ▲]

{
  "etymology_text": "\"During the 18th to 20th centuries, hat makers used mercury to stiffen felt for hats. They used a type of mercury called mercuric nitrate and worked in poorly ventilated rooms. Over time, the hatters inhaled mercury vapors. Many developed symptoms of chronic mercury poisoning, including psychosis, excitability, and tremors. These symptoms became so common in hatters that the phrase “mad as a hatter” was born.\"",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "head": "mad hatter disease"
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      "expansion": "mad hatter disease (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
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      ],
      "links": [
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          "erethism"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "mad hatter disease"
}

[Show JSON error data ▼] [Hide JSON error data ▲]

{
  "called_from": "parserfns/1040",
  "msg": "unrecognized time syntax in Lua:mw.language:formatDate: 'Maiy 19, 2021'",
  "path": [
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  "title": "mad hatter disease",
  "trace": ""
}

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{
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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-04-30 from the enwiktionary dump dated 2024-04-21 using wiktextract (210104c and c9440ce). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.

"mad hatter disease" meaning in English

Noun