"stylonurid" meaning in English

{
  "forms": [
    {
      "form": "stylonurids",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stylonurid (plural stylonurids)",
      "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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            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Arthropods",
          "orig": "en:Arthropods",
          "parents": [
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Zoology",
          "orig": "en:Zoology",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any eurypterid of the family †Stylonuridae."
      ],
      "id": "en-stylonurid-en-noun-Vrnz284P",
      "links": [
        [
          "zoology",
          "zoology"
        ],
        [
          "eurypterid",
          "eurypterid"
        ]
      ],
      "raw_glosses": [
        "(zoology) Any eurypterid of the family †Stylonuridae."
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "zoology"
      ]
    }
  ],
  "word": "stylonurid"
}

{
  "forms": [
    {
      "form": "stylonurids",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stylonurid (plural stylonurids)",
      "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 nouns",
        "Entries using missing taxonomic name (family)",
        "Pages with 1 entry",
        "en:Arthropods",
        "en:Zoology"
      ],
      "glosses": [
        "Any eurypterid of the family †Stylonuridae."
      ],
      "links": [
        [
          "zoology",
          "zoology"
        ],
        [
          "eurypterid",
          "eurypterid"
        ]
      ],
      "raw_glosses": [
        "(zoology) Any eurypterid of the family †Stylonuridae."
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "zoology"
      ]
    }
  ],
  "word": "stylonurid"
}