"vacuum flask" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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        "Synonym of thermos"
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          "word": "thermos"
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      "glosses": [
        "A Dewar vessel, a scientific instrument used to store liquified gases."
      ],
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          "chemistry",
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          "Dewar vessel",
          "Dewar vessel"
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      "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."
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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": "18 16 67",
          "sense": "laboratory flask with spout",
          "word": "Büchner flask"
        },
        {
          "_dis1": "23 23 54",
          "word": "Dewar flask"
        },
        {
          "_dis1": "23 23 54",
          "word": "Dewar vessel"
        },
        {
          "_dis1": "23 23 54",
          "word": "vacuum bottle"
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      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
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  "word": "vacuum flask"
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  "lang_code": "en",
  "pos": "noun",
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        "A Dewar vessel, a scientific instrument used to store liquified gases."
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          "Dewar vessel",
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        "(chemistry) A Dewar vessel, a scientific instrument used to store liquified gases."
      ],
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        "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."
      ],
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          "chemistry"
        ],
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          "Erlenmeyer flask",
          "Erlenmeyer flask"
        ],
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          "aspirator",
          "aspirator"
        ]
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      "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."
      ],
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        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
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  ],
  "synonyms": [
    {
      "sense": "laboratory flask with spout",
      "word": "Büchner flask"
    },
    {
      "word": "Dewar flask"
    },
    {
      "word": "Dewar vessel"
    },
    {
      "word": "vacuum bottle"
    }
  ],
  "word": "vacuum flask"
}