"streptozocin" meaning in English

{
  "etymology_text": "From Streptomyces acromogenes, from which it was originally isolated in the 1950s.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "streptozocin (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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Drugs",
          "orig": "en:Drugs",
          "parents": [
            "Matter",
            "Pharmacology",
            "Chemistry",
            "Nature",
            "Biochemistry",
            "Medicine",
            "Sciences",
            "All topics",
            "Biology",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A particular nitrosurea used in chemotherapy."
      ],
      "id": "en-streptozocin-en-noun-VRss37vM",
      "links": [
        [
          "nitrosurea",
          "nitrosurea"
        ],
        [
          "chemotherapy",
          "chemotherapy"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "streptozocin"
}

{
  "etymology_text": "From Streptomyces acromogenes, from which it was originally isolated in the 1950s.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "streptozocin (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English nouns",
        "English uncountable nouns",
        "en:Drugs"
      ],
      "glosses": [
        "A particular nitrosurea used in chemotherapy."
      ],
      "links": [
        [
          "nitrosurea",
          "nitrosurea"
        ],
        [
          "chemotherapy",
          "chemotherapy"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "streptozocin"
}