"positive control" meaning in English

{
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      "expansion": "positive control (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
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      ],
      "glosses": [
        "The air traffic control practice of controlling aircraft whose positions are determined by direct radar observation."
      ],
      "id": "en-positive_control-en-noun-TifEZ4Qd",
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "air traffic control",
          "air traffic control"
        ],
        [
          "direct",
          "direct"
        ],
        [
          "radar",
          "radar"
        ],
        [
          "observation",
          "observation"
        ]
      ],
      "raw_glosses": [
        "(aviation) The air traffic control practice of controlling aircraft whose positions are determined by direct radar observation."
      ],
      "related": [
        {
          "_dis1": "58 42",
          "word": "positive control group"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    },
    {
      "glosses": [
        "In dog handling, the state of having affirmative physical or non-physical control of a dog."
      ],
      "id": "en-positive_control-en-noun-jY0TrDSU",
      "links": [
        [
          "dog",
          "dog"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "positive control"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
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      "expansion": "positive control (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "positive control group"
    }
  ],
  "senses": [
    {
      "categories": [
        "en:Aviation"
      ],
      "glosses": [
        "The air traffic control practice of controlling aircraft whose positions are determined by direct radar observation."
      ],
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "air traffic control",
          "air traffic control"
        ],
        [
          "direct",
          "direct"
        ],
        [
          "radar",
          "radar"
        ],
        [
          "observation",
          "observation"
        ]
      ],
      "raw_glosses": [
        "(aviation) The air traffic control practice of controlling aircraft whose positions are determined by direct radar observation."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    },
    {
      "glosses": [
        "In dog handling, the state of having affirmative physical or non-physical control of a dog."
      ],
      "links": [
        [
          "dog",
          "dog"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "positive control"
}