"housemaid's knee" meaning in English

{
  "etymology_text": "So called because it used to be prevalent among housemaids, who spent time kneeling on floors to clean them.",
  "forms": [
    {
      "form": "housemaid's knees",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "housemaid's knee (countable and uncountable, plural housemaid's knees)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Pathology",
          "orig": "en:Pathology",
          "parents": [
            "Medicine",
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "swelling of the bursa before the kneecap."
      ],
      "id": "en-housemaid's_knee-en-noun-HsudyhzE",
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "bursa",
          "bursa"
        ],
        [
          "kneecap",
          "kneecap"
        ]
      ],
      "raw_glosses": [
        "(pathology) swelling of the bursa before the kneecap."
      ],
      "synonyms": [
        {
          "word": "prepatellar bursitis"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ],
      "translations": [
        {
          "code": "hy",
          "lang": "Armenian",
          "roman": "cnkoskri borbokʻum",
          "sense": "swelling of the bursa before the kneecap",
          "tags": [
            "neuter"
          ],
          "word": "ծնկոսկրի բորբոքում"
        },
        {
          "code": "ga",
          "lang": "Irish",
          "sense": "swelling of the bursa before the kneecap",
          "tags": [
            "masculine"
          ],
          "word": "glúinteas"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "vospalenije kolennoj čašečki",
          "sense": "swelling of the bursa before the kneecap",
          "tags": [
            "neuter"
          ],
          "word": "воспаление коленной чашечки"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "swelling of the bursa before the kneecap",
          "tags": [
            "neuter"
          ],
          "word": "skurknä"
        }
      ]
    }
  ],
  "word": "housemaid's knee"
}

{
  "etymology_text": "So called because it used to be prevalent among housemaids, who spent time kneeling on floors to clean them.",
  "forms": [
    {
      "form": "housemaid's knees",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "housemaid's knee (countable and uncountable, plural housemaid's knees)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "en:Pathology"
      ],
      "glosses": [
        "swelling of the bursa before the kneecap."
      ],
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "bursa",
          "bursa"
        ],
        [
          "kneecap",
          "kneecap"
        ]
      ],
      "raw_glosses": [
        "(pathology) swelling of the bursa before the kneecap."
      ],
      "synonyms": [
        {
          "word": "prepatellar bursitis"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "hy",
      "lang": "Armenian",
      "roman": "cnkoskri borbokʻum",
      "sense": "swelling of the bursa before the kneecap",
      "tags": [
        "neuter"
      ],
      "word": "ծնկոսկրի բորբոքում"
    },
    {
      "code": "ga",
      "lang": "Irish",
      "sense": "swelling of the bursa before the kneecap",
      "tags": [
        "masculine"
      ],
      "word": "glúinteas"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "vospalenije kolennoj čašečki",
      "sense": "swelling of the bursa before the kneecap",
      "tags": [
        "neuter"
      ],
      "word": "воспаление коленной чашечки"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "swelling of the bursa before the kneecap",
      "tags": [
        "neuter"
      ],
      "word": "skurknä"
    }
  ],
  "word": "housemaid's knee"
}