"set operation" meaning in English

{
  "forms": [
    {
      "form": "set operations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "set operation (plural set operations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Czech translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Korean translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Set theory",
          "orig": "en:Set theory",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A mathematical operation that returns a set taking one or more sets as input."
      ],
      "id": "en-set_operation-en-noun-Ds1V~ZSl",
      "links": [
        [
          "set theory",
          "set theory"
        ],
        [
          "mathematical",
          "mathematical"
        ],
        [
          "operation",
          "operation"
        ],
        [
          "set",
          "set"
        ]
      ],
      "raw_glosses": [
        "(set theory) A mathematical operation that returns a set taking one or more sets as input."
      ],
      "synonyms": [
        {
          "word": "set-theoretic operation"
        }
      ],
      "topics": [
        "mathematics",
        "sciences",
        "set-theory"
      ],
      "translations": [
        {
          "code": "cs",
          "lang": "Czech",
          "lang_code": "cs",
          "sense": "mathematical operation on sets",
          "tags": [
            "feminine"
          ],
          "word": "množinová operace"
        },
        {
          "alt": "しゅうごうえんざん",
          "code": "ja",
          "lang": "Japanese",
          "lang_code": "ja",
          "roman": "shūgō enzan",
          "sense": "mathematical operation on sets",
          "word": "集合演算"
        },
        {
          "alt": "集合演算",
          "code": "ko",
          "lang": "Korean",
          "lang_code": "ko",
          "roman": "jiphap yeonsan",
          "sense": "mathematical operation on sets",
          "word": "집합 연산"
        }
      ]
    }
  ],
  "word": "set operation"
}

{
  "forms": [
    {
      "form": "set operations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "set operation (plural set operations)",
      "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",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Czech translations",
        "Terms with Japanese translations",
        "Terms with Korean translations",
        "en:Set theory"
      ],
      "glosses": [
        "A mathematical operation that returns a set taking one or more sets as input."
      ],
      "links": [
        [
          "set theory",
          "set theory"
        ],
        [
          "mathematical",
          "mathematical"
        ],
        [
          "operation",
          "operation"
        ],
        [
          "set",
          "set"
        ]
      ],
      "raw_glosses": [
        "(set theory) A mathematical operation that returns a set taking one or more sets as input."
      ],
      "topics": [
        "mathematics",
        "sciences",
        "set-theory"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "set-theoretic operation"
    }
  ],
  "translations": [
    {
      "code": "cs",
      "lang": "Czech",
      "lang_code": "cs",
      "sense": "mathematical operation on sets",
      "tags": [
        "feminine"
      ],
      "word": "množinová operace"
    },
    {
      "alt": "しゅうごうえんざん",
      "code": "ja",
      "lang": "Japanese",
      "lang_code": "ja",
      "roman": "shūgō enzan",
      "sense": "mathematical operation on sets",
      "word": "集合演算"
    },
    {
      "alt": "集合演算",
      "code": "ko",
      "lang": "Korean",
      "lang_code": "ko",
      "roman": "jiphap yeonsan",
      "sense": "mathematical operation on sets",
      "word": "집합 연산"
    }
  ],
  "word": "set operation"
}