"idrografo" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "idro",
        "3": "grafo"
      },
      "expansion": "idro- + -grafo",
      "name": "confix"
    }
  ],
  "etymology_text": "From idro- + -grafo.",
  "forms": [
    {
      "form": "idrografi",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "idrografo m (plural idrografi)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian terms prefixed with idro-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian terms suffixed with -grafo",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "hydrographer"
      ],
      "id": "en-idrografo-it-noun-cZZOWncn",
      "links": [
        [
          "hydrographer",
          "hydrographer"
        ]
      ],
      "related": [
        {
          "word": "idrografia"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "idrografo"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "idro",
        "3": "grafo"
      },
      "expansion": "idro- + -grafo",
      "name": "confix"
    }
  ],
  "etymology_text": "From idro- + -grafo.",
  "forms": [
    {
      "form": "idrografi",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "idrografo m (plural idrografi)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "related": [
    {
      "word": "idrografia"
    }
  ],
  "senses": [
    {
      "categories": [
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian masculine nouns",
        "Italian nouns",
        "Italian terms prefixed with idro-",
        "Italian terms suffixed with -grafo"
      ],
      "glosses": [
        "hydrographer"
      ],
      "links": [
        [
          "hydrographer",
          "hydrographer"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "idrografo"
}