"substorm" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "storm"
      },
      "expansion": "sub- + storm",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + storm",
  "forms": [
    {
      "form": "substorms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "substorm (plural substorms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with sub-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "substorm current wedge"
        }
      ],
      "examples": [
        {
          "ref": "2007 January 23, Warren E. Leary, “Five New Satellites With a Mission of Finding a Source of Color in Space”, in New York Times",
          "text": "At times, however, energy builds up within the magnetic field until it suddenly breaks loose into what is called a substorm, releasing a burst of electrical current that turns the auroras into pulsing red, purple and white colors.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A phenomenon in which a magnetotail becomes swollen and unstable."
      ],
      "id": "en-substorm-en-noun-5TYVaKwO",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "phenomenon",
          "phenomenon"
        ],
        [
          "magnetotail",
          "magnetotail"
        ],
        [
          "swollen",
          "swollen"
        ],
        [
          "unstable",
          "unstable"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A phenomenon in which a magnetotail becomes swollen and unstable."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "word": "substorm"
}

{
  "derived": [
    {
      "word": "substorm current wedge"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "storm"
      },
      "expansion": "sub- + storm",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + storm",
  "forms": [
    {
      "form": "substorms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "substorm (plural substorms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with sub-",
        "English terms with quotations",
        "en:Astronomy"
      ],
      "examples": [
        {
          "ref": "2007 January 23, Warren E. Leary, “Five New Satellites With a Mission of Finding a Source of Color in Space”, in New York Times",
          "text": "At times, however, energy builds up within the magnetic field until it suddenly breaks loose into what is called a substorm, releasing a burst of electrical current that turns the auroras into pulsing red, purple and white colors.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A phenomenon in which a magnetotail becomes swollen and unstable."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "phenomenon",
          "phenomenon"
        ],
        [
          "magnetotail",
          "magnetotail"
        ],
        [
          "swollen",
          "swollen"
        ],
        [
          "unstable",
          "unstable"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A phenomenon in which a magnetotail becomes swollen and unstable."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "word": "substorm"
}