"riacho" meaning in Spanish

{
  "forms": [
    {
      "form": "riachos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "riacho m (plural riachos)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "es",
          "name": "Bodies of water",
          "orig": "es:Bodies of water",
          "parents": [
            "Landforms",
            "Water",
            "Earth",
            "Places",
            "Liquids",
            "Nature",
            "Names",
            "Matter",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Chemistry",
            "Fundamental",
            "Nouns",
            "Sciences",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "es",
          "name": "Landforms",
          "orig": "es:Landforms",
          "parents": [
            "Earth",
            "Places",
            "Nature",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "stream"
      ],
      "id": "en-riacho-es-noun-3Kg-cXsf",
      "links": [
        [
          "stream",
          "stream"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "riacho"
}

{
  "forms": [
    {
      "form": "riachos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "riacho m (plural riachos)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 2 entries",
        "Pages with entries",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine nouns",
        "Spanish nouns",
        "es:Bodies of water",
        "es:Landforms"
      ],
      "glosses": [
        "stream"
      ],
      "links": [
        [
          "stream",
          "stream"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "riacho"
}