"shelf cloud" meaning in English

{
  "forms": [
    {
      "form": "shelf clouds",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "shelf cloud (plural shelf clouds)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
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        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Accessory clouds",
          "orig": "en:Accessory clouds",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Clouds",
          "orig": "en:Clouds",
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            "Atmosphere",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Meteorology",
          "orig": "en:Meteorology",
          "parents": [
            "Atmosphere",
            "Earth sciences",
            "Nature",
            "Sciences",
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        }
      ],
      "glosses": [
        "A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow. An arcus type cloud often found along squall lines."
      ],
      "id": "en-shelf_cloud-en-noun-7x0bWi~m",
      "links": [
        [
          "meteorology",
          "meteorology"
        ],
        [
          "horizontal",
          "horizontal"
        ],
        [
          "outflow",
          "outflow"
        ],
        [
          "arcus",
          "arcus"
        ],
        [
          "squall line",
          "squall line"
        ]
      ],
      "raw_glosses": [
        "(meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow. An arcus type cloud often found along squall lines."
      ],
      "topics": [
        "climatology",
        "meteorology",
        "natural-sciences"
      ]
    }
  ],
  "word": "shelf cloud"
}

{
  "forms": [
    {
      "form": "shelf clouds",
      "tags": [
        "plural"
      ]
    }
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      "expansion": "shelf cloud (plural shelf clouds)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Accessory clouds",
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        "en:Meteorology"
      ],
      "glosses": [
        "A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow. An arcus type cloud often found along squall lines."
      ],
      "links": [
        [
          "meteorology",
          "meteorology"
        ],
        [
          "horizontal",
          "horizontal"
        ],
        [
          "outflow",
          "outflow"
        ],
        [
          "arcus",
          "arcus"
        ],
        [
          "squall line",
          "squall line"
        ]
      ],
      "raw_glosses": [
        "(meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow. An arcus type cloud often found along squall lines."
      ],
      "topics": [
        "climatology",
        "meteorology",
        "natural-sciences"
      ]
    }
  ],
  "word": "shelf cloud"
}