"superworm" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "super-",
        "3": "worm"
      },
      "expansion": "super- + worm",
      "name": "af"
    }
  ],
  "etymology_text": "From super- + worm.",
  "forms": [
    {
      "form": "superworms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "superworm (plural superworms)",
      "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 super-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Tenebrionoid beetles",
          "orig": "en:Tenebrionoid beetles",
          "parents": [
            "Beetles",
            "Insects",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The grub of a beetle in the genus Zophobas, especially as a food item."
      ],
      "id": "en-superworm-en-noun-u7iRNjuy",
      "links": [
        [
          "grub",
          "grub"
        ],
        [
          "beetle",
          "beetle"
        ],
        [
          "food",
          "food"
        ]
      ]
    }
  ],
  "word": "superworm"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "super-",
        "3": "worm"
      },
      "expansion": "super- + worm",
      "name": "af"
    }
  ],
  "etymology_text": "From super- + worm.",
  "forms": [
    {
      "form": "superworms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "superworm (plural superworms)",
      "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 super-",
        "en:Tenebrionoid beetles"
      ],
      "glosses": [
        "The grub of a beetle in the genus Zophobas, especially as a food item."
      ],
      "links": [
        [
          "grub",
          "grub"
        ],
        [
          "beetle",
          "beetle"
        ],
        [
          "food",
          "food"
        ]
      ]
    }
  ],
  "word": "superworm"
}