"zero visibility" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "Устойчивые сочетания/en",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_text": "zero + visibility",
  "lang": "Английский",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "glosses": [
        "нулевая видимость"
      ],
      "id": "ru-zero_visibility-en-phrase-N2RKN5Pz",
      "raw_glosses": [
        "метеорол. нулевая видимость"
      ],
      "topics": [
        "meteorology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "ˈzɪər(ə)ʊˌvɪzəˈbɪlɪtɪ"
    }
  ],
  "word": "zero visibility"
}

{
  "categories": [
    "Устойчивые сочетания/en"
  ],
  "etymology_text": "zero + visibility",
  "lang": "Английский",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "glosses": [
        "нулевая видимость"
      ],
      "raw_glosses": [
        "метеорол. нулевая видимость"
      ],
      "topics": [
        "meteorology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "ˈzɪər(ə)ʊˌvɪzəˈbɪlɪtɪ"
    }
  ],
  "word": "zero visibility"
}