"三角定規" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "三角",
        "3": "定規",
        "t1": "triangular",
        "t2": "ruler",
        "tr1": "sankaku",
        "tr2": "jōgi"
      },
      "expansion": "三角 (sankaku, “triangular”) + 定規 (jōgi, “ruler”)",
      "name": "com"
    }
  ],
  "etymology_text": "三角 (sankaku, “triangular”) + 定規 (jōgi, “ruler”)",
  "forms": [
    {
      "form": "三角定規",
      "ruby": [
        [
          "三",
          "さん"
        ],
        [
          "角",
          "かく"
        ],
        [
          "定",
          "じょう"
        ],
        [
          "規",
          "ぎ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "sankaku jōgi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "さんかく じょうぎ"
      },
      "expansion": "三(さん)角(かく)定(じょう)規(ぎ) • (sankaku jōgi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 4 kanji",
          "parents": [],
          "source": "w"
        },
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          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
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        },
        {
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Measuring instruments",
          "orig": "ja:Measuring instruments",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a set square; a triangle"
      ],
      "id": "en-三角定規-ja-noun-ra2cjzr-",
      "links": [
        [
          "set square",
          "set square"
        ],
        [
          "triangle",
          "triangle"
        ]
      ],
      "wikipedia": [
        "ja:三角定規"
      ]
    }
  ],
  "sounds": [
    {
      "other": "さんかくじょーぎ"
    },
    {
      "ipa": "[sã̠ŋka̠kɯ̟ d͡ʑo̞ːɡʲi]"
    }
  ],
  "word": "三角定規"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "三角",
        "3": "定規",
        "t1": "triangular",
        "t2": "ruler",
        "tr1": "sankaku",
        "tr2": "jōgi"
      },
      "expansion": "三角 (sankaku, “triangular”) + 定規 (jōgi, “ruler”)",
      "name": "com"
    }
  ],
  "etymology_text": "三角 (sankaku, “triangular”) + 定規 (jōgi, “ruler”)",
  "forms": [
    {
      "form": "三角定規",
      "ruby": [
        [
          "三",
          "さん"
        ],
        [
          "角",
          "かく"
        ],
        [
          "定",
          "じょう"
        ],
        [
          "規",
          "ぎ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "sankaku jōgi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "さんかく じょうぎ"
      },
      "expansion": "三(さん)角(かく)定(じょう)規(ぎ) • (sankaku jōgi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese compound terms",
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
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        "Japanese terms spelled with fifth grade kanji",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with 4 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with multiple readings",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Measuring instruments"
      ],
      "glosses": [
        "a set square; a triangle"
      ],
      "links": [
        [
          "set square",
          "set square"
        ],
        [
          "triangle",
          "triangle"
        ]
      ],
      "wikipedia": [
        "ja:三角定規"
      ]
    }
  ],
  "sounds": [
    {
      "other": "さんかくじょーぎ"
    },
    {
      "ipa": "[sã̠ŋka̠kɯ̟ d͡ʑo̞ːɡʲi]"
    }
  ],
  "word": "三角定規"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "三角定規"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "三角定規",
  "trace": ""
}