"Armstrong line" meaning in English

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      "expansion": "Harry George Armstrong",
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      "expansion": "Named after Harry George Armstrong (1899–1983)",
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  "etymology_text": "Named after Harry George Armstrong (1899–1983), who determined this limit.",
  "head_templates": [
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      "args": {},
      "expansion": "Armstrong line",
      "name": "en-proper noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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      "coordinate_terms": [
        {
          "word": "death zone"
        },
        {
          "word": "Kármán line"
        },
        {
          "word": "McDowell line"
        },
        {
          "word": "mesopause"
        }
      ],
      "glosses": [
        "The altitude above sea level at which water boils without a pressurized environment, and at which a person would require a pressure suit or pressurized environment to survive, and avoid having their bodily fluids boil away."
      ],
      "id": "en-Armstrong_line-en-name-LBGTWEod",
      "links": [
        [
          "altitude",
          "altitude"
        ]
      ],
      "synonyms": [
        {
          "word": "Armstrong's line"
        },
        {
          "word": "Armstrong limit"
        }
      ],
      "translations": [
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "altitude at which water boils without a pressurized environment",
          "tags": [
            "feminine"
          ],
          "word": "linha de Armstrong"
        }
      ]
    }
  ],
  "word": "Armstrong line"
}

{
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    {
      "word": "death zone"
    },
    {
      "word": "Kármán line"
    },
    {
      "word": "McDowell line"
    },
    {
      "word": "mesopause"
    }
  ],
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  "etymology_text": "Named after Harry George Armstrong (1899–1983), who determined this limit.",
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      "expansion": "Armstrong line",
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  "lang": "English",
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      "glosses": [
        "The altitude above sea level at which water boils without a pressurized environment, and at which a person would require a pressure suit or pressurized environment to survive, and avoid having their bodily fluids boil away."
      ],
      "links": [
        [
          "altitude",
          "altitude"
        ]
      ],
      "synonyms": [
        {
          "word": "Armstrong's line"
        },
        {
          "word": "Armstrong limit"
        }
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Armstrong's line"
    }
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  "translations": [
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "altitude at which water boils without a pressurized environment",
      "tags": [
        "feminine"
      ],
      "word": "linha de Armstrong"
    }
  ],
  "word": "Armstrong line"
}