"proneurotoxin" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pro",
        "3": "neurotoxin"
      },
      "expansion": "pro- + neurotoxin",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pro- + neurotoxin.",
  "forms": [
    {
      "form": "proneurotoxins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "proneurotoxin (plural proneurotoxins)",
      "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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          "name": "English terms prefixed with pro-",
          "parents": [],
          "source": "w"
        },
        {
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          "source": "w"
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Toxicology",
          "orig": "en:Toxicology",
          "parents": [
            "Medicine",
            "Pharmacology",
            "Biology",
            "Healthcare",
            "Biochemistry",
            "Sciences",
            "Health",
            "Chemistry",
            "All topics",
            "Body",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any material that is metabolised to become a neurotoxin"
      ],
      "id": "en-proneurotoxin-en-noun-tpp6bXRo",
      "links": [
        [
          "neurotoxin",
          "neurotoxin"
        ]
      ]
    }
  ],
  "word": "proneurotoxin"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pro",
        "3": "neurotoxin"
      },
      "expansion": "pro- + neurotoxin",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pro- + neurotoxin.",
  "forms": [
    {
      "form": "proneurotoxins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "proneurotoxin (plural proneurotoxins)",
      "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 pro-",
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        "en:Toxicology"
      ],
      "glosses": [
        "Any material that is metabolised to become a neurotoxin"
      ],
      "links": [
        [
          "neurotoxin",
          "neurotoxin"
        ]
      ]
    }
  ],
  "word": "proneurotoxin"
}