"TBX18" meaning in Conventions internationales

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms scientifiques",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Conventions internationales",
      "orig": "conventions internationales",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "De l’anglais T-box, affecté du numéro 18."
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "noun",
  "pos_title": "Nom scientifique",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en conventions internationales de la génétique",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Un des gènes du génome humain."
      ],
      "id": "fr-TBX18-conv-noun-SuVdCrTO",
      "raw_tags": [
        "Génétique"
      ]
    }
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "TBX18"
    },
    {
      "lang": "Français",
      "lang_code": "fr",
      "word": "TBX18"
    }
  ],
  "word": "TBX18"
}

{
  "categories": [
    "Noms scientifiques",
    "Traductions en anglais",
    "Traductions en français",
    "conventions internationales"
  ],
  "etymology_texts": [
    "De l’anglais T-box, affecté du numéro 18."
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "noun",
  "pos_title": "Nom scientifique",
  "senses": [
    {
      "categories": [
        "Lexique en conventions internationales de la génétique"
      ],
      "glosses": [
        "Un des gènes du génome humain."
      ],
      "raw_tags": [
        "Génétique"
      ]
    }
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "TBX18"
    },
    {
      "lang": "Français",
      "lang_code": "fr",
      "word": "TBX18"
    }
  ],
  "word": "TBX18"
}