"Möbius’ bånd" meaning in Norvégien

{
  "categories": [
    {
      "kind": "other",
      "name": "Genres manquants en norvégien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en norvégien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Norvégien",
      "orig": "norvégien",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Norvégien",
  "lang_code": "no",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "genre à préciser : {{m}}, {{f}}, {{mf}}, {{n}} ?"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en norvégien de la topologie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Ruban de Möbius."
      ],
      "id": "fr-Möbius’_bånd-no-noun-7Ru5sugh",
      "topics": [
        "topology"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Möbius’ flate"
    }
  ],
  "word": "Möbius’ bånd"
}

{
  "categories": [
    "Genres manquants en norvégien",
    "Noms communs en norvégien",
    "norvégien"
  ],
  "lang": "Norvégien",
  "lang_code": "no",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "genre à préciser : {{m}}, {{f}}, {{mf}}, {{n}} ?"
  ],
  "senses": [
    {
      "categories": [
        "Lexique en norvégien de la topologie"
      ],
      "glosses": [
        "Ruban de Möbius."
      ],
      "topics": [
        "topology"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Möbius’ flate"
    }
  ],
  "word": "Möbius’ bånd"
}