"folium of Descartes" meaning in English

{
  "etymology_text": "Named after René Descartes.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "folium of Descartes",
      "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"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geometry",
          "orig": "en:Geometry",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An algebraic curve defined by the implicit equation x³+y³-3axy=0."
      ],
      "id": "en-folium_of_Descartes-en-noun-MqyGmVZk",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "algebraic",
          "algebraic"
        ],
        [
          "curve",
          "curve"
        ],
        [
          "implicit",
          "implicit"
        ],
        [
          "equation",
          "equation"
        ]
      ],
      "raw_glosses": [
        "(geometry) An algebraic curve defined by the implicit equation x³+y³-3axy=0."
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "René Descartes"
      ]
    }
  ],
  "word": "folium of Descartes"
}

{
  "etymology_text": "Named after René Descartes.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "folium of Descartes",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with unknown or uncertain plurals",
        "English terms with non-redundant non-automated sortkeys",
        "en:Geometry"
      ],
      "glosses": [
        "An algebraic curve defined by the implicit equation x³+y³-3axy=0."
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "algebraic",
          "algebraic"
        ],
        [
          "curve",
          "curve"
        ],
        [
          "implicit",
          "implicit"
        ],
        [
          "equation",
          "equation"
        ]
      ],
      "raw_glosses": [
        "(geometry) An algebraic curve defined by the implicit equation x³+y³-3axy=0."
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "René Descartes"
      ]
    }
  ],
  "word": "folium of Descartes"
}