"zero-zero" meaning in English

{
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      "expansion": "zero-zero (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
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            "Fundamental"
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            "All topics",
            "Fundamental"
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      "examples": [
        {
          "ref": "1965, Aircraft engineering",
          "text": "Test vehicles used during this extensive programme were a launching stand for the zero-zero ejections...",
          "type": "quotation"
        },
        {
          "ref": "1988, René J. Francillon, McDonnell Douglas aircraft since 1920",
          "text": "Both cockpits were enclosed under a large canopy and both crew sat on zero-zero ejector seats.",
          "type": "quotation"
        },
        {
          "ref": "2002, Walter J. Boyne, Air warfare: an international encyclopedia: Volume 1, page 190",
          "text": "To lessen these forces, as well as achieve zero-zero seat capability—the ability to eject while sitting motionless on the ground—rocket sustainers were added.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Pertaining to the ejection of the occupant of an aircraft from a grounded stationary position (i.e. zero altitude and zero airspeed)."
      ],
      "id": "en-zero-zero-en-adj-fwdskFH6",
      "links": [
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          "aviation",
          "aviation"
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          "military",
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          "ejection",
          "ejection"
        ],
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          "occupant",
          "occupant"
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          "aircraft",
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          "stationary",
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        ],
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          "altitude",
          "altitude"
        ],
        [
          "airspeed",
          "airspeed"
        ]
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      "raw_glosses": [
        "(aviation, military) Pertaining to the ejection of the occupant of an aircraft from a grounded stationary position (i.e. zero altitude and zero airspeed)."
      ],
      "tags": [
        "not-comparable"
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            "Fundamental"
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          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Category IIIc ILS would enable landings in true zero-zero conditions (where the pilots can see nothing, not even the surface of the runway they're on), but the problem of blind taxiing - a necessary capability in order to make use of ILS-IIIc - remains unsolved.",
          "type": "example"
        }
      ],
      "glosses": [
        "Pertaining to weather conditions of zero ceiling and zero visibility (i.e., opaque cloud all the way down to ground level), or to aircraft operations in such conditions."
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          "ground level",
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      "raw_glosses": [
        "(aviation) Pertaining to weather conditions of zero ceiling and zero visibility (i.e., opaque cloud all the way down to ground level), or to aircraft operations in such conditions."
      ],
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        "not-comparable"
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        "aeronautics",
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      ],
      "examples": [
        {
          "text": "a zero-zero treaty"
        }
      ],
      "glosses": [
        "Involving neither of two powers increasing their stockpile of nuclear weapons."
      ],
      "id": "en-zero-zero-en-adj-tHf2aATn",
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          "military",
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        "(military) Involving neither of two powers increasing their stockpile of nuclear weapons."
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        "military",
        "politics",
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  "word": "zero-zero"
}

{
  "categories": [
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    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English uncomparable adjectives"
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  "head_templates": [
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      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
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        "Quotation templates to be cleaned",
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        "en:Military"
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        {
          "ref": "1965, Aircraft engineering",
          "text": "Test vehicles used during this extensive programme were a launching stand for the zero-zero ejections...",
          "type": "quotation"
        },
        {
          "ref": "1988, René J. Francillon, McDonnell Douglas aircraft since 1920",
          "text": "Both cockpits were enclosed under a large canopy and both crew sat on zero-zero ejector seats.",
          "type": "quotation"
        },
        {
          "ref": "2002, Walter J. Boyne, Air warfare: an international encyclopedia: Volume 1, page 190",
          "text": "To lessen these forces, as well as achieve zero-zero seat capability—the ability to eject while sitting motionless on the ground—rocket sustainers were added.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Pertaining to the ejection of the occupant of an aircraft from a grounded stationary position (i.e. zero altitude and zero airspeed)."
      ],
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        ],
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        ],
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        ],
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          "occupant",
          "occupant"
        ],
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          "aircraft",
          "aircraft"
        ],
        [
          "stationary",
          "stationary"
        ],
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          "altitude",
          "altitude"
        ],
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          "airspeed",
          "airspeed"
        ]
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      "raw_glosses": [
        "(aviation, military) Pertaining to the ejection of the occupant of an aircraft from a grounded stationary position (i.e. zero altitude and zero airspeed)."
      ],
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        "not-comparable"
      ],
      "topics": [
        "aeronautics",
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        "aviation",
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        "military",
        "natural-sciences",
        "physical-sciences",
        "politics",
        "war"
      ]
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      "categories": [
        "English terms with usage examples",
        "en:Aviation"
      ],
      "examples": [
        {
          "text": "Category IIIc ILS would enable landings in true zero-zero conditions (where the pilots can see nothing, not even the surface of the runway they're on), but the problem of blind taxiing - a necessary capability in order to make use of ILS-IIIc - remains unsolved.",
          "type": "example"
        }
      ],
      "glosses": [
        "Pertaining to weather conditions of zero ceiling and zero visibility (i.e., opaque cloud all the way down to ground level), or to aircraft operations in such conditions."
      ],
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        ],
        [
          "visibility",
          "visibility"
        ],
        [
          "opaque",
          "opaque"
        ],
        [
          "cloud",
          "cloud"
        ],
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          "ground level",
          "ground level"
        ]
      ],
      "raw_glosses": [
        "(aviation) Pertaining to weather conditions of zero ceiling and zero visibility (i.e., opaque cloud all the way down to ground level), or to aircraft operations in such conditions."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
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        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    },
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      "categories": [
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      "examples": [
        {
          "text": "a zero-zero treaty"
        }
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      "glosses": [
        "Involving neither of two powers increasing their stockpile of nuclear weapons."
      ],
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      "raw_glosses": [
        "(military) Involving neither of two powers increasing their stockpile of nuclear weapons."
      ],
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        "not-comparable"
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        "government",
        "military",
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  "word": "zero-zero"
}