"lateral sinus" meaning in English

{
  "forms": [
    {
      "form": "lateral sinuses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lateral sinus (plural lateral sinuses)",
      "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": "Anatomy",
          "orig": "en:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of transverse sinus."
      ],
      "id": "en-lateral_sinus-en-noun-koxJSCAJ",
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "transverse sinus",
          "transverse sinus#English"
        ]
      ],
      "raw_glosses": [
        "(anatomy) Synonym of transverse sinus."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "transverse sinus"
        }
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "dural venous sinus",
          "word": "側竇"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "cè dòu",
          "sense": "dural venous sinus",
          "word": "侧窦"
        }
      ]
    }
  ],
  "word": "lateral sinus"
}

{
  "forms": [
    {
      "form": "lateral sinuses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lateral sinus (plural lateral sinuses)",
      "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",
        "en:Anatomy"
      ],
      "glosses": [
        "Synonym of transverse sinus."
      ],
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "transverse sinus",
          "transverse sinus#English"
        ]
      ],
      "raw_glosses": [
        "(anatomy) Synonym of transverse sinus."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "transverse sinus"
        }
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "dural venous sinus",
      "word": "側竇"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "cè dòu",
      "sense": "dural venous sinus",
      "word": "侧窦"
    }
  ],
  "word": "lateral sinus"
}