"alluvious" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "alluvius"
      },
      "expansion": "Latin alluvius",
      "name": "uder"
    }
  ],
  "etymology_text": "Latin alluvius.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "alluvious (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1832, John Howdon, A Rational Investigation of the Principles of Natural Philosophy",
          "text": "In the second place , in the mountain districts we find no extensive alluvious formations , as in the plains ; no extensive beds or banks of sand or gravel",
          "type": "quotation"
        }
      ],
      "glosses": [
        "alluvial"
      ],
      "id": "en-alluvious-en-adj-4NSaQ1pW",
      "links": [
        [
          "alluvial",
          "alluvial"
        ]
      ],
      "raw_glosses": [
        "(archaic) alluvial"
      ],
      "tags": [
        "archaic",
        "not-comparable"
      ]
    }
  ],
  "word": "alluvious"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "alluvius"
      },
      "expansion": "Latin alluvius",
      "name": "uder"
    }
  ],
  "etymology_text": "Latin alluvius.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "alluvious (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms derived from Latin",
        "English terms with archaic senses",
        "English terms with quotations",
        "English uncomparable adjectives",
        "English undefined derivations"
      ],
      "examples": [
        {
          "ref": "1832, John Howdon, A Rational Investigation of the Principles of Natural Philosophy",
          "text": "In the second place , in the mountain districts we find no extensive alluvious formations , as in the plains ; no extensive beds or banks of sand or gravel",
          "type": "quotation"
        }
      ],
      "glosses": [
        "alluvial"
      ],
      "links": [
        [
          "alluvial",
          "alluvial"
        ]
      ],
      "raw_glosses": [
        "(archaic) alluvial"
      ],
      "tags": [
        "archaic",
        "not-comparable"
      ]
    }
  ],
  "word": "alluvious"
}