"hydrogen sulphite" meaning in English

{
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    {
      "form": "hydrogen sulphites",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hydrogen sulphite (plural hydrogen sulphites)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "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": "Inorganic compounds",
          "orig": "en:Inorganic compounds",
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            "Chemistry",
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        }
      ],
      "glosses": [
        "sulphurous acid"
      ],
      "id": "en-hydrogen_sulphite-en-noun-oGaNiriP",
      "links": [
        [
          "inorganic chemistry",
          "inorganic chemistry"
        ],
        [
          "sulphurous acid",
          "sulphurous acid"
        ]
      ],
      "raw_glosses": [
        "(inorganic chemistry) sulphurous acid"
      ],
      "topics": [
        "chemistry",
        "inorganic-chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "hydrogen sulphite"
}

{
  "forms": [
    {
      "form": "hydrogen sulphites",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hydrogen sulphite (plural hydrogen sulphites)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
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        "en:Inorganic compounds"
      ],
      "glosses": [
        "sulphurous acid"
      ],
      "links": [
        [
          "inorganic chemistry",
          "inorganic chemistry"
        ],
        [
          "sulphurous acid",
          "sulphurous acid"
        ]
      ],
      "raw_glosses": [
        "(inorganic chemistry) sulphurous acid"
      ],
      "topics": [
        "chemistry",
        "inorganic-chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "hydrogen sulphite"
}