"triangle de Reuleaux" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en arabe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en italien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de triangle et de Reuleaux.",
    "Du nom de l’ingénieur allemand Franz Reuleaux."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "notes": [
    "Le triangle de Reuleaux n’est pas un triangle !"
  ],
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de la géométrie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Orbiforme construit à partir d’un triangle équilatéral."
      ],
      "id": "fr-triangle_de_Reuleaux-fr-noun-kou9y-fC",
      "topics": [
        "geometry"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "translations": [
    {
      "lang": "Arabe",
      "lang_code": "ar",
      "roman": "muṯallaṯ(u) rūlū",
      "word": "مُثَلَّثُ رُولُو"
    },
    {
      "lang": "Italien",
      "lang_code": "it",
      "word": "triangolo di Reuleaux"
    }
  ],
  "word": "triangle de Reuleaux"
}

{
  "categories": [
    "Compositions en français",
    "Locutions nominales en français",
    "Traductions en arabe",
    "Traductions en italien",
    "français"
  ],
  "etymology_texts": [
    "Composé de triangle et de Reuleaux.",
    "Du nom de l’ingénieur allemand Franz Reuleaux."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "notes": [
    "Le triangle de Reuleaux n’est pas un triangle !"
  ],
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Lexique en français de la géométrie"
      ],
      "glosses": [
        "Orbiforme construit à partir d’un triangle équilatéral."
      ],
      "topics": [
        "geometry"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "translations": [
    {
      "lang": "Arabe",
      "lang_code": "ar",
      "roman": "muṯallaṯ(u) rūlū",
      "word": "مُثَلَّثُ رُولُو"
    },
    {
      "lang": "Italien",
      "lang_code": "it",
      "word": "triangolo di Reuleaux"
    }
  ],
  "word": "triangle de Reuleaux"
}