"hypophosphorous acid" meaning in English

{
  "forms": [
    {
      "form": "hypophosphorous acids",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hypophosphorous acid (plural hypophosphorous acids)",
      "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"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A pale yellow liquid, H₃PO₂, used as a reducing agent."
      ],
      "id": "en-hypophosphorous_acid-en-noun-X08Q435a",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "pale",
          "pale"
        ],
        [
          "yellow",
          "yellow"
        ],
        [
          "liquid",
          "liquid"
        ],
        [
          "reducing agent",
          "reducing agent"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A pale yellow liquid, H₃PO₂, used as a reducing agent."
      ],
      "related": [
        {
          "word": "hypophosphite"
        },
        {
          "word": "phosphorous acid"
        },
        {
          "word": "phosphoric acid"
        },
        {
          "word": "orthophosphorous acid"
        }
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "is",
          "lang": "Icelandic",
          "sense": "a pale yellow liquid",
          "tags": [
            "masculine"
          ],
          "word": "fosfórundirsýrlingur"
        },
        {
          "code": "ro",
          "lang": "Romanian",
          "sense": "a pale yellow liquid",
          "tags": [
            "masculine"
          ],
          "word": "acid hipofosforos"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "fosfornovátistaja kislotá",
          "sense": "a pale yellow liquid",
          "tags": [
            "feminine"
          ],
          "word": "фосфорнова́тистая кислота́"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "gipofósforistaja kislotá",
          "sense": "a pale yellow liquid",
          "tags": [
            "feminine"
          ],
          "word": "гипофо́сфористая кислота́"
        }
      ]
    }
  ],
  "word": "hypophosphorous acid"
}

{
  "forms": [
    {
      "form": "hypophosphorous acids",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hypophosphorous acid (plural hypophosphorous acids)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "hypophosphite"
    },
    {
      "word": "phosphorous acid"
    },
    {
      "word": "phosphoric acid"
    },
    {
      "word": "orthophosphorous acid"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Chemistry"
      ],
      "glosses": [
        "A pale yellow liquid, H₃PO₂, used as a reducing agent."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "pale",
          "pale"
        ],
        [
          "yellow",
          "yellow"
        ],
        [
          "liquid",
          "liquid"
        ],
        [
          "reducing agent",
          "reducing agent"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A pale yellow liquid, H₃PO₂, used as a reducing agent."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "is",
      "lang": "Icelandic",
      "sense": "a pale yellow liquid",
      "tags": [
        "masculine"
      ],
      "word": "fosfórundirsýrlingur"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "a pale yellow liquid",
      "tags": [
        "masculine"
      ],
      "word": "acid hipofosforos"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "fosfornovátistaja kislotá",
      "sense": "a pale yellow liquid",
      "tags": [
        "feminine"
      ],
      "word": "фосфорнова́тистая кислота́"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "gipofósforistaja kislotá",
      "sense": "a pale yellow liquid",
      "tags": [
        "feminine"
      ],
      "word": "гипофо́сфористая кислота́"
    }
  ],
  "word": "hypophosphorous acid"
}