"比重" meaning in Japanese

{
  "forms": [
    {
      "form": "比重",
      "ruby": [
        [
          "比",
          "ひ"
        ],
        [
          "重",
          "じゅう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hijū",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ひじゅう"
      },
      "expansion": "比(ひ)重(じゅう) • (hijū)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "88 12",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "88 12",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "82 18",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "85 15",
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "82 18",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "91 9",
          "kind": "other",
          "langcode": "ja",
          "name": "Physics",
          "orig": "ja:Physics",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "specific gravity"
      ],
      "id": "en-比重-ja-noun-cTabIHGV",
      "links": [
        [
          "specific gravity",
          "specific gravity"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "relative importance"
      ],
      "id": "en-比重-ja-noun-XGFhfwiu"
    }
  ],
  "word": "比重"
}

{
  "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 third grade kanji",
    "Japanese terms with 2 kanji",
    "Japanese terms with non-redundant non-automated sortkeys",
    "Japanese terms with redundant sortkeys",
    "Pages with 3 entries",
    "Pages with entries",
    "ja:Physics"
  ],
  "forms": [
    {
      "form": "比重",
      "ruby": [
        [
          "比",
          "ひ"
        ],
        [
          "重",
          "じゅう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hijū",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ひじゅう"
      },
      "expansion": "比(ひ)重(じゅう) • (hijū)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "specific gravity"
      ],
      "links": [
        [
          "specific gravity",
          "specific gravity"
        ]
      ]
    },
    {
      "glosses": [
        "relative importance"
      ]
    }
  ],
  "word": "比重"
}

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