"lesser sac" meaning in English

{
  "forms": [
    {
      "form": "lesser sacs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lesser sac (plural lesser sacs)",
      "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",
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          "source": "w"
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          "name": "Terms with Spanish translations",
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Anatomy",
          "orig": "en:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "Healthcare",
            "All topics",
            "Health",
            "Fundamental",
            "Body"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A portion of the peritoneal cavity that lies posterior to the stomach and the lesser omentum."
      ],
      "id": "en-lesser_sac-en-noun-~l33epZR",
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "peritoneal",
          "peritoneal"
        ],
        [
          "cavity",
          "cavity"
        ],
        [
          "posterior",
          "posterior"
        ],
        [
          "stomach",
          "stomach"
        ],
        [
          "lesser omentum",
          "lesser omentum"
        ]
      ],
      "raw_glosses": [
        "(anatomy) A portion of the peritoneal cavity that lies posterior to the stomach and the lesser omentum."
      ],
      "related": [
        {
          "word": "greater sac"
        }
      ],
      "synonyms": [
        {
          "word": "omental bursa"
        }
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ],
      "translations": [
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "abdominal cavity",
          "tags": [
            "feminine"
          ],
          "word": "transcavidad de los epiplones"
        }
      ]
    }
  ],
  "word": "lesser sac"
}

{
  "forms": [
    {
      "form": "lesser sacs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lesser sac (plural lesser sacs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "greater sac"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
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        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Spanish translations",
        "en:Anatomy"
      ],
      "glosses": [
        "A portion of the peritoneal cavity that lies posterior to the stomach and the lesser omentum."
      ],
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "peritoneal",
          "peritoneal"
        ],
        [
          "cavity",
          "cavity"
        ],
        [
          "posterior",
          "posterior"
        ],
        [
          "stomach",
          "stomach"
        ],
        [
          "lesser omentum",
          "lesser omentum"
        ]
      ],
      "raw_glosses": [
        "(anatomy) A portion of the peritoneal cavity that lies posterior to the stomach and the lesser omentum."
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "omental bursa"
    }
  ],
  "translations": [
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "abdominal cavity",
      "tags": [
        "feminine"
      ],
      "word": "transcavidad de los epiplones"
    }
  ],
  "word": "lesser sac"
}