"NOx" meaning in English

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      "expansion": "N (“nitrogen”) + O (“oxygen”) + x (“x substitution value”)",
      "name": "compound"
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  "etymology_text": "From N (“nitrogen”) + O (“oxygen”) + x (“x substitution value”).",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
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          "ref": "2020 December 16, Daniel Puddicombe, “Treated DMUs become greener and cleaner”, in Rail, page 46:",
          "text": "\"The NOx and particulate reductions provide clean air in the cities and communities we serve. [...]\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any of the various nitrogen oxides produced during combustion."
      ],
      "id": "en-NOx-en-noun-tX1vGAJ4",
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        [
          "chemistry",
          "chemistry"
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        [
          "nitrogen oxide",
          "nitrogen oxide"
        ],
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          "combustion",
          "combustion"
        ]
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      "raw_glosses": [
        "(chemistry) Any of the various nitrogen oxides produced during combustion."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "nitrogen oxides",
          "tags": [
            "plural"
          ],
          "word": "nitrózus gázok"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "nitrogen oxides",
          "tags": [
            "singular"
          ],
          "word": "nitrózus gáz"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "nokseu",
          "sense": "nitrogen oxides",
          "word": "녹스"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛn əʊ ˈɛks/"
    },
    {
      "other": "/nɔks/"
    }
  ],
  "word": "NOx"
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      "name": "compound"
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          "word": "nox"
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          "name": "Automotive",
          "orig": "en:Automotive",
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            "Transport",
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          "nox",
          "nox#English"
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        "(automotive performance) Alternative form of nox"
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      "ipa": "/ɛn əʊ ˈɛks/"
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      "name": "compound"
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  "etymology_text": "From N (“nitrogen”) + O (“oxygen”) + x (“x substitution value”).",
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    {
      "form": "NOₓ",
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          "text": "\"The NOx and particulate reductions provide clean air in the cities and communities we serve. [...]\"",
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        }
      ],
      "glosses": [
        "Any of the various nitrogen oxides produced during combustion."
      ],
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        [
          "chemistry",
          "chemistry"
        ],
        [
          "nitrogen oxide",
          "nitrogen oxide"
        ],
        [
          "combustion",
          "combustion"
        ]
      ],
      "raw_glosses": [
        "(chemistry) Any of the various nitrogen oxides produced during combustion."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
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    {
      "ipa": "/ɛn əʊ ˈɛks/"
    },
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    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "nitrogen oxides",
      "tags": [
        "plural"
      ],
      "word": "nitrózus gázok"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "nitrogen oxides",
      "tags": [
        "singular"
      ],
      "word": "nitrózus gáz"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "nokseu",
      "sense": "nitrogen oxides",
      "word": "녹스"
    }
  ],
  "word": "NOx"
}

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          "word": "nox"
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        "(automotive performance) Alternative form of nox"
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      "ipa": "/ɛn əʊ ˈɛks/"
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  "word": "NOx"
}