"cold sleep" meaning in English

{
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      "args": {
        "1": "-"
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      "expansion": "cold sleep (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "coldsleep"
        }
      ],
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        {
          "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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      "examples": [
        {
          "ref": "1957, Robert A. Heinlein, The Door Into Summer",
          "text": "I hesitated, then added, \"I'm going to take the Long Sleep. The cold sleep—you know what I mean.\"",
          "type": "quotation"
        },
        {
          "ref": "1998 May 15, Larry Niven, Destiny's Road",
          "text": "Half a thousand colonists had left Sol system in cold sleep, with twenty crew.",
          "type": "quotation"
        },
        {
          "ref": "2004, Harry Turtledove, Homeward Bound",
          "text": "Anyone who worked on cold sleep for humans would have to know about what the Lizards did so they could fly between the stars without getting old on the way.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of coldsleep"
      ],
      "id": "en-cold_sleep-en-noun-4x-cuhOK",
      "links": [
        [
          "coldsleep",
          "coldsleep#English"
        ]
      ],
      "synonyms": [
        {
          "word": "suspended animation"
        }
      ],
      "tags": [
        "alt-of",
        "alternative",
        "uncountable"
      ]
    }
  ],
  "word": "cold sleep"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cold sleep (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "coldsleep"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns"
      ],
      "examples": [
        {
          "ref": "1957, Robert A. Heinlein, The Door Into Summer",
          "text": "I hesitated, then added, \"I'm going to take the Long Sleep. The cold sleep—you know what I mean.\"",
          "type": "quotation"
        },
        {
          "ref": "1998 May 15, Larry Niven, Destiny's Road",
          "text": "Half a thousand colonists had left Sol system in cold sleep, with twenty crew.",
          "type": "quotation"
        },
        {
          "ref": "2004, Harry Turtledove, Homeward Bound",
          "text": "Anyone who worked on cold sleep for humans would have to know about what the Lizards did so they could fly between the stars without getting old on the way.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of coldsleep"
      ],
      "links": [
        [
          "coldsleep",
          "coldsleep#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "suspended animation"
    }
  ],
  "word": "cold sleep"
}