"negative zero" meaning in English

{
  "forms": [
    {
      "form": "negative zeros",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "negative zeroes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~",
        "2": "s",
        "3": "negative zeroes"
      },
      "expansion": "negative zero (countable and uncountable, plural negative zeros or negative zeroes)",
      "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": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Zero",
          "orig": "en:Zero",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "One must take care in handling negative zero in comparisons."
        }
      ],
      "glosses": [
        "A signed magnitude representation of zero in which the sign bit indicates a negative number."
      ],
      "id": "en-negative_zero-en-noun-euL6aUhu",
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "signed magnitude",
          "signed magnitude"
        ],
        [
          "sign bit",
          "sign bit"
        ]
      ],
      "raw_glosses": [
        "(computing) A signed magnitude representation of zero in which the sign bit indicates a negative number."
      ],
      "related": [
        {
          "word": "positive zero"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "computing: representation of zero",
          "word": "negatiivinen nolla"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "computing: representation of zero",
          "tags": [
            "masculine"
          ],
          "word": "zéro négatif"
        },
        {
          "code": "ja",
          "english": "fu no zero",
          "lang": "Japanese",
          "sense": "computing: representation of zero",
          "word": "負のゼロ"
        }
      ]
    }
  ],
  "word": "negative zero"
}

{
  "forms": [
    {
      "form": "negative zeros",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "negative zeroes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~",
        "2": "s",
        "3": "negative zeroes"
      },
      "expansion": "negative zero (countable and uncountable, plural negative zeros or negative zeroes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "positive zero"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Computing",
        "en:Zero"
      ],
      "examples": [
        {
          "text": "One must take care in handling negative zero in comparisons."
        }
      ],
      "glosses": [
        "A signed magnitude representation of zero in which the sign bit indicates a negative number."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "signed magnitude",
          "signed magnitude"
        ],
        [
          "sign bit",
          "sign bit"
        ]
      ],
      "raw_glosses": [
        "(computing) A signed magnitude representation of zero in which the sign bit indicates a negative number."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "computing: representation of zero",
      "word": "negatiivinen nolla"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "computing: representation of zero",
      "tags": [
        "masculine"
      ],
      "word": "zéro négatif"
    },
    {
      "code": "ja",
      "english": "fu no zero",
      "lang": "Japanese",
      "sense": "computing: representation of zero",
      "word": "負のゼロ"
    }
  ],
  "word": "negative zero"
}