"ref" meaning in Ancien occitan

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en ancien occitan",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien occitan",
      "orig": "ancien occitan",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Ancien occitan",
  "lang_code": "pro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en ancien occitan de l’ornithologie",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Maladies en ancien occitan",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Sorte de maladie des oiseaux de proie."
      ],
      "id": "fr-ref-pro-noun-odQuadc5",
      "raw_tags": [
        "Nosologie"
      ],
      "topics": [
        "ornithology"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "ref"
}

{
  "categories": [
    "Noms communs en ancien occitan",
    "ancien occitan"
  ],
  "lang": "Ancien occitan",
  "lang_code": "pro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en ancien occitan de l’ornithologie",
        "Maladies en ancien occitan"
      ],
      "glosses": [
        "Sorte de maladie des oiseaux de proie."
      ],
      "raw_tags": [
        "Nosologie"
      ],
      "topics": [
        "ornithology"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "ref"
}