"reelt tall" 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 des mathématiques",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Nombre rationnel."
      ],
      "id": "fr-reelt_tall-no-noun-QTXbTuER",
      "topics": [
        "mathematics"
      ]
    }
  ],
  "word": "reelt tall"
}

{
  "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 des mathématiques"
      ],
      "glosses": [
        "Nombre rationnel."
      ],
      "topics": [
        "mathematics"
      ]
    }
  ],
  "word": "reelt tall"
}