"arto" meaning in Italien

{
  "anagrams": [
    {
      "word": "Roat"
    },
    {
      "word": "Taro"
    },
    {
      "word": "tarò"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en italien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en italien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Italien",
      "orig": "italien",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "translation": "membre supérieur",
      "word": "arto superiore"
    }
  ],
  "forms": [
    {
      "form": "arti",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Italien",
  "lang_code": "it",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en italien de l’anatomie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Membre."
      ],
      "id": "fr-arto-it-noun-cBT2z0V3",
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "arto"
}

{
  "anagrams": [
    {
      "word": "Roat"
    },
    {
      "word": "Taro"
    },
    {
      "word": "tarò"
    }
  ],
  "categories": [
    "Lemmes en italien",
    "Noms communs en italien",
    "italien"
  ],
  "derived": [
    {
      "translation": "membre supérieur",
      "word": "arto superiore"
    }
  ],
  "forms": [
    {
      "form": "arti",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Italien",
  "lang_code": "it",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en italien de l’anatomie"
      ],
      "glosses": [
        "Membre."
      ],
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "arto"
}