"misdefense" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mis",
        "3": "defense"
      },
      "expansion": "mis- + defense",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mis- + defense.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "misdefense (uncountable)",
      "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 mis-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2009 January 15, Phillip Alder, “Scrutinizing the Dummy to Develop the Defense”, Bridge, in New York Times:",
          "text": "South now had seven tricks (two spades, three hearts and two clubs), and a later misdefense allowed an overtrick.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A faulty defense that allows one's opponent to take advantage"
      ],
      "id": "en-misdefense-en-noun-uzgZse8r",
      "links": [
        [
          "defense",
          "defense"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "misdefense"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mis",
        "3": "defense"
      },
      "expansion": "mis- + defense",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mis- + defense.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "misdefense (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with mis-",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2009 January 15, Phillip Alder, “Scrutinizing the Dummy to Develop the Defense”, Bridge, in New York Times:",
          "text": "South now had seven tricks (two spades, three hearts and two clubs), and a later misdefense allowed an overtrick.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A faulty defense that allows one's opponent to take advantage"
      ],
      "links": [
        [
          "defense",
          "defense"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "misdefense"
}