"ユーレカ" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "grc",
        "3": "εὕρηκα",
        "4": "",
        "5": "I have found"
      },
      "expansion": "Ancient Greek εὕρηκα (heúrēka, “I have found”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek εὕρηκα (heúrēka, “I have found”), perfect active indicative 1st singular of εὑρίσκω (heurískō, “I find”).",
  "forms": [
    {
      "form": "yūreka",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ユーレカ • (yūreka)",
      "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"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese katakana",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "eureka"
      ],
      "id": "en-ユーレカ-ja-noun-BDeMsXJW",
      "links": [
        [
          "eureka",
          "eureka"
        ]
      ]
    }
  ],
  "word": "ユーレカ"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "grc",
        "3": "εὕρηκα",
        "4": "",
        "5": "I have found"
      },
      "expansion": "Ancient Greek εὕρηκα (heúrēka, “I have found”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek εὕρηκα (heúrēka, “I have found”), perfect active indicative 1st singular of εὑρίσκω (heurískō, “I find”).",
  "forms": [
    {
      "form": "yūreka",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ユーレカ • (yūreka)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese katakana",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms derived from Ancient Greek",
        "Japanese terms spelled with ー",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "eureka"
      ],
      "links": [
        [
          "eureka",
          "eureka"
        ]
      ]
    }
  ],
  "word": "ユーレカ"
}

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