"nullifier" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "nullify",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "nullify + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From nullify + -er.",
  "forms": [
    {
      "form": "nullifiers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nullifier (plural nullifiers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "One who, or that which, nullifies."
      ],
      "id": "en-nullifier-en-noun-6ox4vN7y",
      "links": [
        [
          "nullifies",
          "nullify"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "US politics",
          "orig": "en:US politics",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "29 71",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "English terms suffixed with -er (agent noun)",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "39 61",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A person holding the belief that states could nullify federal laws within their borders."
      ],
      "id": "en-nullifier-en-noun-OnwHPKvo",
      "links": [
        [
          "state",
          "state"
        ],
        [
          "nullify",
          "nullify"
        ],
        [
          "federal",
          "federal"
        ],
        [
          "law",
          "law"
        ],
        [
          "border",
          "border"
        ]
      ],
      "raw_glosses": [
        "(US politics, historical) A person holding the belief that states could nullify federal laws within their borders."
      ],
      "synonyms": [
        {
          "word": "nullificator"
        },
        {
          "word": "nullificationist"
        }
      ],
      "tags": [
        "US",
        "historical"
      ],
      "topics": [
        "government",
        "politics"
      ]
    }
  ],
  "word": "nullifier"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms suffixed with -er (agent noun)",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "nullify",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "nullify + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From nullify + -er.",
  "forms": [
    {
      "form": "nullifiers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nullifier (plural nullifiers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "One who, or that which, nullifies."
      ],
      "links": [
        [
          "nullifies",
          "nullify"
        ]
      ]
    },
    {
      "categories": [
        "English terms with historical senses",
        "en:US politics"
      ],
      "glosses": [
        "A person holding the belief that states could nullify federal laws within their borders."
      ],
      "links": [
        [
          "state",
          "state"
        ],
        [
          "nullify",
          "nullify"
        ],
        [
          "federal",
          "federal"
        ],
        [
          "law",
          "law"
        ],
        [
          "border",
          "border"
        ]
      ],
      "raw_glosses": [
        "(US politics, historical) A person holding the belief that states could nullify federal laws within their borders."
      ],
      "synonyms": [
        {
          "word": "nullificator"
        },
        {
          "word": "nullificationist"
        }
      ],
      "tags": [
        "US",
        "historical"
      ],
      "topics": [
        "government",
        "politics"
      ]
    }
  ],
  "word": "nullifier"
}