"leaf sewer" meaning in English

{
  "forms": [
    {
      "form": "leaf sewers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leaf sewer (plural leaf sewers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Tortricid moths",
          "orig": "en:Tortricid moths",
          "parents": [
            "Moths",
            "Insects",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The moth Ancylis nubeculana."
      ],
      "id": "en-leaf_sewer-en-noun-ob0~etin",
      "links": [
        [
          "moth",
          "moth"
        ]
      ],
      "synonyms": [
        {
          "word": "apple-leaf sewer"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈliːf ˌsəʊə(ɹ)/"
    }
  ],
  "word": "leaf sewer"
}

{
  "forms": [
    {
      "form": "leaf sewers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leaf sewer (plural leaf sewers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with IPA pronunciation",
        "English terms with non-redundant non-automated sortkeys",
        "Entries using missing taxonomic name (species)",
        "en:Tortricid moths"
      ],
      "glosses": [
        "The moth Ancylis nubeculana."
      ],
      "links": [
        [
          "moth",
          "moth"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈliːf ˌsəʊə(ɹ)/"
    }
  ],
  "synonyms": [
    {
      "word": "apple-leaf sewer"
    }
  ],
  "word": "leaf sewer"
}