"Tharsis" meaning in Conventions internationales

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms propres en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Toponymes de Mars en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Conventions internationales",
      "orig": "conventions internationales",
      "parents": [],
      "source": "w"
    }
  ],
  "hyponyms": [
    {
      "word": "Arsia Mons"
    },
    {
      "word": "Ascraeus Mons"
    },
    {
      "word": "Olympus Mons"
    },
    {
      "word": "Pavonis Mons"
    }
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "glosses": [
        "Plateau de la planète Mars."
      ],
      "id": "fr-Tharsis-conv-name-XMSpzL67"
    }
  ],
  "word": "Tharsis"
}

{
  "categories": [
    "Noms propres en conventions internationales",
    "Toponymes de Mars en conventions internationales",
    "conventions internationales"
  ],
  "hyponyms": [
    {
      "word": "Arsia Mons"
    },
    {
      "word": "Ascraeus Mons"
    },
    {
      "word": "Olympus Mons"
    },
    {
      "word": "Pavonis Mons"
    }
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "glosses": [
        "Plateau de la planète Mars."
      ]
    }
  ],
  "word": "Tharsis"
}