"常数" meaning in Japanese

{
  "forms": [
    {
      "form": "常数",
      "ruby": [
        [
          "常",
          "じょう"
        ],
        [
          "数",
          "すう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "jōsū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "zyausuu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "じやうすう",
      "roman": "zyausuu",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "じょうすう",
        "hhira": "じやうすう"
      },
      "expansion": "常(じょう)数(すう) • (jōsū) ^(←じやうすう (zyausuu)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "59 41",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "natural course of things"
      ],
      "id": "en-常数-ja-noun-P6x6ah4p",
      "links": [
        [
          "course",
          "course"
        ],
        [
          "things",
          "things"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Mathematics",
          "orig": "ja:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "0 43 57",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 42 58",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "12 88",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "13 87",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "13 87",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "a constant, an invariable"
      ],
      "id": "en-常数-ja-noun-dhfgKh52",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "constant",
          "constant"
        ],
        [
          "invariable",
          "invariable"
        ]
      ],
      "raw_glosses": [
        "(mathematics) a constant, an invariable"
      ],
      "synonyms": [
        {
          "word": "定数"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "じょーすう"
    },
    {
      "ipa": "[d͡ʑo̞ːsɨː]"
    }
  ],
  "word": "常数"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant alt parameters",
    "Japanese links with redundant wikilinks",
    "Japanese nouns",
    "Japanese terms spelled with fifth grade kanji",
    "Japanese terms spelled with second grade kanji",
    "Japanese terms with 2 kanji",
    "Japanese terms with IPA pronunciation",
    "Japanese terms with redundant sortkeys",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "常数",
      "ruby": [
        [
          "常",
          "じょう"
        ],
        [
          "数",
          "すう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "jōsū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "zyausuu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "じやうすう",
      "roman": "zyausuu",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "じょうすう",
        "hhira": "じやうすう"
      },
      "expansion": "常(じょう)数(すう) • (jōsū) ^(←じやうすう (zyausuu)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "natural course of things"
      ],
      "links": [
        [
          "course",
          "course"
        ],
        [
          "things",
          "things"
        ]
      ]
    },
    {
      "categories": [
        "Japanese terms with non-redundant non-automated sortkeys",
        "ja:Mathematics"
      ],
      "glosses": [
        "a constant, an invariable"
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "constant",
          "constant"
        ],
        [
          "invariable",
          "invariable"
        ]
      ],
      "raw_glosses": [
        "(mathematics) a constant, an invariable"
      ],
      "synonyms": [
        {
          "word": "定数"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "じょーすう"
    },
    {
      "ipa": "[d͡ʑo̞ːsɨː]"
    }
  ],
  "word": "常数"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "常数"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "常数",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "常数"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "常数",
  "trace": ""
}