"polysomnography" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "poly",
        "3": "somnography"
      },
      "expansion": "poly- + somnography",
      "name": "prefix"
    }
  ],
  "etymology_text": "poly- + somnography",
  "forms": [
    {
      "form": "polysomnographies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "polysomnography (plural polysomnographies)",
      "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": "other",
          "name": "English terms prefixed with poly-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A multiparameter recording of brain waves used in the study of sleep"
      ],
      "id": "en-polysomnography-en-noun-n7j8dGT0",
      "links": [
        [
          "multiparameter",
          "multiparameter"
        ],
        [
          "brain wave",
          "brain wave"
        ],
        [
          "sleep",
          "sleep"
        ]
      ],
      "related": [
        {
          "word": "polysomnographist"
        }
      ],
      "translations": [
        {
          "code": "cs",
          "lang": "Czech",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "polysomnografie"
        },
        {
          "code": "ga",
          "lang": "Irish",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "polashuanagrafaíocht"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "polisonnografia"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "polisomnografía"
        }
      ],
      "wikipedia": [
        "polysomnography"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒɡɹəfi"
    }
  ],
  "word": "polysomnography"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "poly",
        "3": "somnography"
      },
      "expansion": "poly- + somnography",
      "name": "prefix"
    }
  ],
  "etymology_text": "poly- + somnography",
  "forms": [
    {
      "form": "polysomnographies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "polysomnography (plural polysomnographies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "polysomnographist"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with poly-",
        "Rhymes:English/ɒɡɹəfi",
        "Rhymes:English/ɒɡɹəfi/6 syllables",
        "Translation table header lacks gloss"
      ],
      "glosses": [
        "A multiparameter recording of brain waves used in the study of sleep"
      ],
      "links": [
        [
          "multiparameter",
          "multiparameter"
        ],
        [
          "brain wave",
          "brain wave"
        ],
        [
          "sleep",
          "sleep"
        ]
      ],
      "wikipedia": [
        "polysomnography"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒɡɹəfi"
    }
  ],
  "translations": [
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "polysomnografie"
    },
    {
      "code": "ga",
      "lang": "Irish",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "polashuanagrafaíocht"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "polisonnografia"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "polisomnografía"
    }
  ],
  "word": "polysomnography"
}