"quaternary ammonium compound" meaning in English

{
  "forms": [
    {
      "form": "quaternary ammonium compounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "quaternary ammonium compound (plural quaternary ammonium compounds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "An amine derivative, containing four radicals, of general formula R₁R₂R₃R₄-N⁺X⁻; the radicals may be the same, different, or part of a ring; X is any univalent anion such as OH⁻."
      ],
      "hypernyms": [
        {
          "word": "quaternary ammonium"
        },
        {
          "word": "quaternium"
        }
      ],
      "id": "en-quaternary_ammonium_compound-en-noun-rLRXUaD3",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "derivative",
          "derivative"
        ],
        [
          "radical",
          "radical"
        ],
        [
          "general formula",
          "general formula"
        ],
        [
          "univalent",
          "univalent"
        ],
        [
          "anion",
          "anion"
        ]
      ],
      "raw_glosses": [
        "(chemistry) An amine derivative, containing four radicals, of general formula R₁R₂R₃R₄-N⁺X⁻; the radicals may be the same, different, or part of a ring; X is any univalent anion such as OH⁻."
      ],
      "related": [
        {
          "word": "quaternary ammonium cation"
        },
        {
          "word": "quaternary ammonium ion"
        },
        {
          "word": "primary amine"
        },
        {
          "word": "secondary amine"
        },
        {
          "word": "tertiary amine"
        }
      ],
      "synonyms": [
        {
          "word": "qac"
        },
        {
          "word": "quat"
        },
        {
          "word": "quaternary amine"
        },
        {
          "word": "quaternary ammonium salt"
        }
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "quaternary ammonium compound"
}

{
  "forms": [
    {
      "form": "quaternary ammonium compounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "quaternary ammonium compound (plural quaternary ammonium compounds)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "quaternary ammonium"
    },
    {
      "word": "quaternium"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "quaternary ammonium cation"
    },
    {
      "word": "quaternary ammonium ion"
    },
    {
      "word": "primary amine"
    },
    {
      "word": "secondary amine"
    },
    {
      "word": "tertiary amine"
    }
  ],
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
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        "English multiword terms",
        "English nouns",
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        "en:Chemistry"
      ],
      "glosses": [
        "An amine derivative, containing four radicals, of general formula R₁R₂R₃R₄-N⁺X⁻; the radicals may be the same, different, or part of a ring; X is any univalent anion such as OH⁻."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
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          "derivative",
          "derivative"
        ],
        [
          "radical",
          "radical"
        ],
        [
          "general formula",
          "general formula"
        ],
        [
          "univalent",
          "univalent"
        ],
        [
          "anion",
          "anion"
        ]
      ],
      "raw_glosses": [
        "(chemistry) An amine derivative, containing four radicals, of general formula R₁R₂R₃R₄-N⁺X⁻; the radicals may be the same, different, or part of a ring; X is any univalent anion such as OH⁻."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "qac"
    },
    {
      "word": "quat"
    },
    {
      "word": "quaternary amine"
    },
    {
      "word": "quaternary ammonium salt"
    }
  ],
  "word": "quaternary ammonium compound"
}