"brain fever" meaning in English

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "brain-fever bird"
    }
  ],
  "forms": [
    {
      "form": "brain fevers",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "brain-fever",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "brain fever (countable and uncountable, plural brain fevers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Pathology",
          "orig": "en:Pathology",
          "parents": [
            "Disease",
            "Medicine",
            "Health",
            "Biology",
            "Healthcare",
            "Body",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "encephalitis or meningitis"
      ],
      "id": "en-brain_fever-en-noun-pXSVclDb",
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "encephalitis",
          "encephalitis"
        ],
        [
          "meningitis",
          "meningitis"
        ]
      ],
      "raw_glosses": [
        "(pathology, dated) encephalitis or meningitis"
      ],
      "tags": [
        "countable",
        "dated",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "_dis": "31 69",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "18 82",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "9 91",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1893, Arthur Conan Doyle, The Adventure of the Cardboard Box:",
          "text": "We found that the news of the arrival of the packet—for her illness dated from that time—had such an effect upon her as to bring on brain fever.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A state of hysteria or temporary insanity caused by an emotional shock."
      ],
      "id": "en-brain_fever-en-noun-KO2uCOA~",
      "links": [
        [
          "hysteria",
          "hysteria"
        ],
        [
          "temporary",
          "temporary"
        ],
        [
          "insanity",
          "insanity"
        ],
        [
          "emotional",
          "emotional"
        ],
        [
          "shock",
          "shock"
        ]
      ],
      "raw_glosses": [
        "(dated) A state of hysteria or temporary insanity caused by an emotional shock."
      ],
      "tags": [
        "countable",
        "dated",
        "uncountable"
      ]
    }
  ],
  "wikipedia": [
    "brain fever"
  ],
  "word": "brain fever"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "derived": [
    {
      "word": "brain-fever bird"
    }
  ],
  "forms": [
    {
      "form": "brain fevers",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "brain-fever",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "brain fever (countable and uncountable, plural brain fevers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English dated terms",
        "en:Pathology"
      ],
      "glosses": [
        "encephalitis or meningitis"
      ],
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "encephalitis",
          "encephalitis"
        ],
        [
          "meningitis",
          "meningitis"
        ]
      ],
      "raw_glosses": [
        "(pathology, dated) encephalitis or meningitis"
      ],
      "tags": [
        "countable",
        "dated",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ]
    },
    {
      "categories": [
        "English dated terms",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1893, Arthur Conan Doyle, The Adventure of the Cardboard Box:",
          "text": "We found that the news of the arrival of the packet—for her illness dated from that time—had such an effect upon her as to bring on brain fever.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A state of hysteria or temporary insanity caused by an emotional shock."
      ],
      "links": [
        [
          "hysteria",
          "hysteria"
        ],
        [
          "temporary",
          "temporary"
        ],
        [
          "insanity",
          "insanity"
        ],
        [
          "emotional",
          "emotional"
        ],
        [
          "shock",
          "shock"
        ]
      ],
      "raw_glosses": [
        "(dated) A state of hysteria or temporary insanity caused by an emotional shock."
      ],
      "tags": [
        "countable",
        "dated",
        "uncountable"
      ]
    }
  ],
  "wikipedia": [
    "brain fever"
  ],
  "word": "brain fever"
}