"fertility drug" meaning in English

{
  "forms": [
    {
      "form": "fertility drugs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fertility drug (plural fertility drugs)",
      "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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          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1991 September, Stephen Fry, chapter 1, in The Liar, London: Heinemann, →ISBN, →OCLC, section I, pages 18–19:",
          "text": "‘My brother,[…], is at Radley, on account of my parents thinking it a bad idea to have us both at the same school.’\n‘On account of your being twins?’ said Adrian.\n‘Right, on account of my mother OD-ing on fertility drugs.[…]’",
          "type": "quote"
        }
      ],
      "glosses": [
        "A drug that improves fertility."
      ],
      "id": "en-fertility_drug-en-noun-qLAtrjvt",
      "links": [
        [
          "drug",
          "drug"
        ],
        [
          "improve",
          "improve"
        ],
        [
          "fertility",
          "fertility"
        ]
      ],
      "wikipedia": [
        "fertility drug"
      ]
    }
  ],
  "word": "fertility drug"
}

{
  "forms": [
    {
      "form": "fertility drugs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fertility drug (plural fertility drugs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1991 September, Stephen Fry, chapter 1, in The Liar, London: Heinemann, →ISBN, →OCLC, section I, pages 18–19:",
          "text": "‘My brother,[…], is at Radley, on account of my parents thinking it a bad idea to have us both at the same school.’\n‘On account of your being twins?’ said Adrian.\n‘Right, on account of my mother OD-ing on fertility drugs.[…]’",
          "type": "quote"
        }
      ],
      "glosses": [
        "A drug that improves fertility."
      ],
      "links": [
        [
          "drug",
          "drug"
        ],
        [
          "improve",
          "improve"
        ],
        [
          "fertility",
          "fertility"
        ]
      ],
      "wikipedia": [
        "fertility drug"
      ]
    }
  ],
  "word": "fertility drug"
}