"vacuum flask" meaning in English

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  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Synonym of thermos"
      ],
      "id": "en-vacuum_flask-en-noun-bCKBQ8BN",
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          "word": "thermos"
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          "name": "Chemistry",
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            "Fundamental"
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      ],
      "glosses": [
        "A Dewar vessel, a scientific instrument used to store liquified gases."
      ],
      "id": "en-vacuum_flask-en-noun-cCggeSo6",
      "links": [
        [
          "chemistry",
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        [
          "Dewar vessel",
          "Dewar vessel"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A Dewar vessel, a scientific instrument used to store liquified gases."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    },
    {
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        }
      ],
      "glosses": [
        "A type of glass flask used in a laboratory similar to an Erlenmeyer flask, but with a side spout used for connection to an aspirator."
      ],
      "id": "en-vacuum_flask-en-noun-gb8eh9yV",
      "links": [
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          "chemistry",
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        [
          "laboratory",
          "laboratory"
        ],
        [
          "Erlenmeyer flask",
          "Erlenmeyer flask"
        ],
        [
          "aspirator",
          "aspirator"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A type of glass flask used in a laboratory similar to an Erlenmeyer flask, but with a side spout used for connection to an aspirator."
      ],
      "synonyms": [
        {
          "_dis1": "16 16 68",
          "sense": "laboratory flask with spout",
          "word": "Büchner flask"
        },
        {
          "_dis1": "22 22 56",
          "word": "Dewar flask"
        },
        {
          "_dis1": "22 22 56",
          "word": "Dewar vessel"
        },
        {
          "_dis1": "22 22 56",
          "word": "vacuum bottle"
        }
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "vacuum flask"
}

{
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  "forms": [
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      "form": "vacuum flasks",
      "tags": [
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  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "Synonym of thermos"
      ],
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    {
      "categories": [
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      ],
      "glosses": [
        "A Dewar vessel, a scientific instrument used to store liquified gases."
      ],
      "links": [
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          "chemistry",
          "chemistry"
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        [
          "Dewar vessel",
          "Dewar vessel"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A Dewar vessel, a scientific instrument used to store liquified gases."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    },
    {
      "categories": [
        "en:Chemistry"
      ],
      "glosses": [
        "A type of glass flask used in a laboratory similar to an Erlenmeyer flask, but with a side spout used for connection to an aspirator."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "laboratory",
          "laboratory"
        ],
        [
          "Erlenmeyer flask",
          "Erlenmeyer flask"
        ],
        [
          "aspirator",
          "aspirator"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A type of glass flask used in a laboratory similar to an Erlenmeyer flask, but with a side spout used for connection to an aspirator."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "laboratory flask with spout",
      "word": "Büchner flask"
    },
    {
      "word": "Dewar flask"
    },
    {
      "word": "Dewar vessel"
    },
    {
      "word": "vacuum bottle"
    }
  ],
  "word": "vacuum flask"
}