"mutator" meaning in English

{
  "antonyms": [
    {
      "word": "accessor"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mutate",
        "3": "or"
      },
      "expansion": "mutate + -or",
      "name": "suffix"
    }
  ],
  "etymology_text": "From mutate + -or.\nThe video gaming sense likely originated in the video game Unreal Tournament (1999).",
  "forms": [
    {
      "form": "mutators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mutator (plural mutators)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "text": "In object-oriented programming, the mutator function changes the value of the field that gives its name.",
          "type": "example"
        }
      ],
      "glosses": [
        "That which causes mutation or change."
      ],
      "id": "en-mutator-en-noun-m0AkA~d5",
      "links": [
        [
          "mutation",
          "mutation"
        ],
        [
          "change",
          "change"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Video games",
          "orig": "en:Video games",
          "parents": [
            "Games",
            "Mass media",
            "Software",
            "Recreation",
            "Culture",
            "Media",
            "Computing",
            "Human activity",
            "Society",
            "Communication",
            "Technology",
            "Human behaviour",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "8 92",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "21 79",
          "kind": "other",
          "name": "English terms suffixed with -or",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "10 90",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2015 October 28, Tom Phillips, “Rocket League match mutators to arrive in free November update”, in Eurogamer.net:",
          "text": "Rocket League will gain match-modifying mutators […] The football-meets-cars mashup will let you toggle on gameplay-changing settings such as low gravity, time warping and explosions.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A setting which alters specific gameplay mechanics, such as rules, physics, or abilities."
      ],
      "id": "en-mutator-en-noun-niXF5m~6",
      "links": [
        [
          "video game",
          "video game"
        ]
      ],
      "raw_glosses": [
        "(video games) A setting which alters specific gameplay mechanics, such as rules, physics, or abilities."
      ],
      "topics": [
        "video-games"
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "setter"
    }
  ],
  "word": "mutator"
}

{
  "antonyms": [
    {
      "word": "accessor"
    }
  ],
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms suffixed with -or",
    "Pages with 3 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mutate",
        "3": "or"
      },
      "expansion": "mutate + -or",
      "name": "suffix"
    }
  ],
  "etymology_text": "From mutate + -or.\nThe video gaming sense likely originated in the video game Unreal Tournament (1999).",
  "forms": [
    {
      "form": "mutators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mutator (plural mutators)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "In object-oriented programming, the mutator function changes the value of the field that gives its name.",
          "type": "example"
        }
      ],
      "glosses": [
        "That which causes mutation or change."
      ],
      "links": [
        [
          "mutation",
          "mutation"
        ],
        [
          "change",
          "change"
        ]
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "en:Video games"
      ],
      "examples": [
        {
          "ref": "2015 October 28, Tom Phillips, “Rocket League match mutators to arrive in free November update”, in Eurogamer.net:",
          "text": "Rocket League will gain match-modifying mutators […] The football-meets-cars mashup will let you toggle on gameplay-changing settings such as low gravity, time warping and explosions.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A setting which alters specific gameplay mechanics, such as rules, physics, or abilities."
      ],
      "links": [
        [
          "video game",
          "video game"
        ]
      ],
      "raw_glosses": [
        "(video games) A setting which alters specific gameplay mechanics, such as rules, physics, or abilities."
      ],
      "topics": [
        "video-games"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "setter"
    }
  ],
  "word": "mutator"
}