"radius of curvature" meaning in English

{
  "forms": [
    {
      "form": "radii of curvature",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {
        "1": "radii of curvature"
      },
      "expansion": "radius of curvature (plural radii of curvature)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "name": "Terms with Finnish translations",
          "parents": [],
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          "name": "Terms with Hungarian translations",
          "parents": [],
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        },
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          "kind": "other",
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          "source": "w"
        },
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          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "The radius of the osculating circle at the point on the curve"
      ],
      "id": "en-radius_of_curvature-en-noun-JWS4-ZyG",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "osculating circle",
          "osculating circle"
        ]
      ],
      "raw_glosses": [
        "(mathematics, for any point on a curve) The radius of the osculating circle at the point on the curve"
      ],
      "raw_tags": [
        "for any point on a curve"
      ],
      "related": [
        {
          "word": "centre of curvature"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "radius of the osculating circle",
          "word": "kaarevuussäde"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "radius of the osculating circle",
          "word": "görbületi sugár"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "rádius krivizný",
          "sense": "radius of the osculating circle",
          "tags": [
            "masculine"
          ],
          "word": "ра́диус кривизны́"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "radius of the osculating circle",
          "tags": [
            "common-gender"
          ],
          "word": "kurvradie"
        }
      ]
    }
  ],
  "word": "radius of curvature"
}

{
  "forms": [
    {
      "form": "radii of curvature",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "radii of curvature"
      },
      "expansion": "radius of curvature (plural radii of curvature)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "centre of curvature"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Hungarian translations",
        "Terms with Russian translations",
        "Terms with Swedish translations",
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      ],
      "glosses": [
        "The radius of the osculating circle at the point on the curve"
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "osculating circle",
          "osculating circle"
        ]
      ],
      "raw_glosses": [
        "(mathematics, for any point on a curve) The radius of the osculating circle at the point on the curve"
      ],
      "raw_tags": [
        "for any point on a curve"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "radius of the osculating circle",
      "word": "kaarevuussäde"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "radius of the osculating circle",
      "word": "görbületi sugár"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "rádius krivizný",
      "sense": "radius of the osculating circle",
      "tags": [
        "masculine"
      ],
      "word": "ра́диус кривизны́"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "radius of the osculating circle",
      "tags": [
        "common-gender"
      ],
      "word": "kurvradie"
    }
  ],
  "word": "radius of curvature"
}