"alluvial fan" meaning in 英语

{
  "categories": [
    {
      "kind": "other",
      "name": "拉丁文字",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "測繪學專有名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英语名词",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "冲积扇\n* 简体: 冲积扇[测绘学]\n* 正體: 沖積扇[測量學]"
      ],
      "id": "zh-alluvial_fan-en-noun-TvCwlZH9"
    }
  ],
  "word": "alluvial fan"
}

{
  "categories": [
    "拉丁文字",
    "測繪學專有名詞",
    "英語",
    "英语名词"
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "冲积扇\n* 简体: 冲积扇[测绘学]\n* 正體: 沖積扇[測量學]"
      ]
    }
  ],
  "word": "alluvial fan"
}