"deoxidizer" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "deoxidize",
        "3": "-er",
        "id2": "agent noun"
      },
      "expansion": "deoxidize + -er",
      "name": "af"
    }
  ],
  "etymology_text": "From deoxidize + -er.",
  "forms": [
    {
      "form": "deoxidizers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "deoxidizer (plural deoxidizers)",
      "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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          "name": "English terms suffixed with -er (agent noun)",
          "parents": [],
          "source": "w"
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          "parents": [],
          "source": "w"
        },
        {
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      ],
      "glosses": [
        "Any agent that reduces the oxygen content of a material; a deoxidant"
      ],
      "id": "en-deoxidizer-en-noun-WBKfl8c6",
      "links": [
        [
          "oxygen",
          "oxygen"
        ],
        [
          "deoxidant",
          "deoxidant"
        ]
      ]
    }
  ],
  "word": "deoxidizer"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "deoxidize",
        "3": "-er",
        "id2": "agent noun"
      },
      "expansion": "deoxidize + -er",
      "name": "af"
    }
  ],
  "etymology_text": "From deoxidize + -er.",
  "forms": [
    {
      "form": "deoxidizers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "deoxidizer (plural deoxidizers)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -er (agent noun)",
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      ],
      "glosses": [
        "Any agent that reduces the oxygen content of a material; a deoxidant"
      ],
      "links": [
        [
          "oxygen",
          "oxygen"
        ],
        [
          "deoxidant",
          "deoxidant"
        ]
      ]
    }
  ],
  "word": "deoxidizer"
}