"円心" meaning in Japanese

{
  "forms": [
    {
      "form": "円心 ^",
      "ruby": [
        [
          "円",
          "えん"
        ],
        [
          "心",
          "しん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "enshin",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "wensin",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ゑんしん",
      "roman": "wensin",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "圓心",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "えんしん",
        "hhira": "ゑんしん"
      },
      "expansion": "円(えん)心(しん) • (enshin) ^(←ゑんしん (wensin)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms read with on'yomi",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with Heiban pitch accent (Tōkyō)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "ja",
          "name": "Geometry",
          "orig": "ja:Geometry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "center of a circle"
      ],
      "id": "en-円心-ja-noun-wLfvAOPq",
      "links": [
        [
          "center",
          "center"
        ]
      ],
      "related": [
        {
          "english": "center",
          "roman": "chūshin",
          "ruby": [
            [
              "中",
              "ちゅう"
            ],
            [
              "心",
              "しん"
            ]
          ],
          "translation": "center",
          "word": "中心"
        }
      ]
    }
  ],
  "sounds": [
    {
      "other": "えんしん"
    },
    {
      "ipa": "[ẽ̞ɰ̃ɕĩɴ]"
    }
  ],
  "word": "円心"
}

{
  "forms": [
    {
      "form": "円心 ^",
      "ruby": [
        [
          "円",
          "えん"
        ],
        [
          "心",
          "しん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "enshin",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "wensin",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ゑんしん",
      "roman": "wensin",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "圓心",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "えんしん",
        "hhira": "ゑんしん"
      },
      "expansion": "円(えん)心(しん) • (enshin) ^(←ゑんしん (wensin)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "related": [
    {
      "english": "center",
      "roman": "chūshin",
      "ruby": [
        [
          "中",
          "ちゅう"
        ],
        [
          "心",
          "しん"
        ]
      ],
      "translation": "center",
      "word": "中心"
    }
  ],
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms historically spelled with ゑ",
        "Japanese terms read with on'yomi",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with 円 read as えん",
        "Japanese terms spelled with 心 read as しん",
        "Japanese terms with 2 kanji",
        "Japanese terms with Heiban pitch accent (Tōkyō)",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with IPA pronunciation with pitch accent",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Geometry"
      ],
      "glosses": [
        "center of a circle"
      ],
      "links": [
        [
          "center",
          "center"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "えんしん"
    },
    {
      "ipa": "[ẽ̞ɰ̃ɕĩɴ]"
    }
  ],
  "word": "円心"
}