"gas bladder" meaning in English

{
  "forms": [
    {
      "form": "gas bladders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gas bladder (plural gas bladders)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Animal body parts",
          "orig": "en:Animal body parts",
          "parents": [
            "Body parts",
            "Animals",
            "Body",
            "Anatomy",
            "Lifeforms",
            "All topics",
            "Biology",
            "Medicine",
            "Life",
            "Fundamental",
            "Sciences",
            "Healthcare",
            "Nature",
            "Health"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ichthyology",
          "orig": "en:Ichthyology",
          "parents": [
            "Zoology",
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2017, BioWare, Mass Effect: Andromeda (Science Fiction), Redwood City: Electronic Arts, →OCLC, PC, scene: Andromeda Wildlife: Manta Codex entry:",
          "text": "Nicknamed a \"manta\" by Andromeda Initiative observers, this majestic creature has been sighted on several worlds in the Heleus Cluster. The Nexus scientists believe it may have originally evolved on a world with heavy deposits of element zero, giving it the ability to lower its mass enough to \"swim\" through the air. Expanding the muscular gas bladders on its underside allows the creature to rise and orient itself in flight.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density."
      ],
      "id": "en-gas_bladder-en-noun-A35sU~Gh",
      "links": [
        [
          "ichthyology",
          "ichthyology"
        ],
        [
          "organ",
          "organ"
        ],
        [
          "buoyancy",
          "buoyancy"
        ],
        [
          "density",
          "density"
        ]
      ],
      "raw_glosses": [
        "(ichthyology) An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density."
      ],
      "synonyms": [
        {
          "word": "air bladder"
        },
        {
          "word": "fish maw"
        },
        {
          "word": "swim bladder"
        }
      ],
      "topics": [
        "biology",
        "ichthyology",
        "natural-sciences",
        "zoology"
      ],
      "wikipedia": [
        "gas bladder"
      ]
    }
  ],
  "word": "gas bladder"
}

{
  "forms": [
    {
      "form": "gas bladders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gas bladder (plural gas bladders)",
      "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 terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Animal body parts",
        "en:Ichthyology"
      ],
      "examples": [
        {
          "ref": "2017, BioWare, Mass Effect: Andromeda (Science Fiction), Redwood City: Electronic Arts, →OCLC, PC, scene: Andromeda Wildlife: Manta Codex entry:",
          "text": "Nicknamed a \"manta\" by Andromeda Initiative observers, this majestic creature has been sighted on several worlds in the Heleus Cluster. The Nexus scientists believe it may have originally evolved on a world with heavy deposits of element zero, giving it the ability to lower its mass enough to \"swim\" through the air. Expanding the muscular gas bladders on its underside allows the creature to rise and orient itself in flight.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density."
      ],
      "links": [
        [
          "ichthyology",
          "ichthyology"
        ],
        [
          "organ",
          "organ"
        ],
        [
          "buoyancy",
          "buoyancy"
        ],
        [
          "density",
          "density"
        ]
      ],
      "raw_glosses": [
        "(ichthyology) An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density."
      ],
      "topics": [
        "biology",
        "ichthyology",
        "natural-sciences",
        "zoology"
      ],
      "wikipedia": [
        "gas bladder"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "air bladder"
    },
    {
      "word": "fish maw"
    },
    {
      "word": "swim bladder"
    }
  ],
  "word": "gas bladder"
}