"breeding ground" meaning in English

{
  "forms": [
    {
      "form": "breeding grounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "breeding ground (plural breeding grounds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "breeding-ground"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2023 November 13, Rosalind Jana, “Saltburn and the bizarre life of Britain's stately homes”, in BBC",
          "text": "Like those many works before it, Saltburn plays with the idea that these enormous bastions of privilege and power are unique breeding grounds for strangeness – and, crucially, magnets for it too.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of breeding-ground"
      ],
      "id": "en-breeding_ground-en-noun-vUgEZvF~",
      "links": [
        [
          "breeding-ground",
          "breeding-ground#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "breeding ground"
}

{
  "forms": [
    {
      "form": "breeding grounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "breeding ground (plural breeding grounds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "breeding-ground"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2023 November 13, Rosalind Jana, “Saltburn and the bizarre life of Britain's stately homes”, in BBC",
          "text": "Like those many works before it, Saltburn plays with the idea that these enormous bastions of privilege and power are unique breeding grounds for strangeness – and, crucially, magnets for it too.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of breeding-ground"
      ],
      "links": [
        [
          "breeding-ground",
          "breeding-ground#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "breeding ground"
}