"mouse spider" meaning in English

{
  "forms": [
    {
      "form": "mouse spiders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mouse spider (plural mouse spiders)",
      "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"
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          "source": "w"
        },
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          "parents": [
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        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Mygalomorph spiders",
          "orig": "en:Mygalomorph spiders",
          "parents": [
            "Spiders",
            "Arachnids",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A spider of the genus Missulena in the mygalomorph family Actinopodidae."
      ],
      "id": "en-mouse_spider-en-noun-c8HWfi-m",
      "links": [
        [
          "spider",
          "spider"
        ],
        [
          "genus",
          "genus"
        ],
        [
          "mygalomorph",
          "mygalomorph"
        ],
        [
          "family",
          "family"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "spider of the genus Missulena",
          "word": "hiirihämähäkki"
        }
      ],
      "wikipedia": [
        "mouse spider"
      ]
    }
  ],
  "word": "mouse spider"
}

{
  "forms": [
    {
      "form": "mouse spiders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mouse spider (plural mouse spiders)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Entries using missing taxonomic name (family)",
        "Entries using missing taxonomic name (genus)",
        "en:Mygalomorph spiders"
      ],
      "glosses": [
        "A spider of the genus Missulena in the mygalomorph family Actinopodidae."
      ],
      "links": [
        [
          "spider",
          "spider"
        ],
        [
          "genus",
          "genus"
        ],
        [
          "mygalomorph",
          "mygalomorph"
        ],
        [
          "family",
          "family"
        ]
      ],
      "wikipedia": [
        "mouse spider"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "spider of the genus Missulena",
      "word": "hiirihämähäkki"
    }
  ],
  "word": "mouse spider"
}