"chalky percher" meaning in English

{
  "forms": [
    {
      "form": "chalky perchers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "chalky percher (plural chalky perchers)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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          "source": "w"
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Entomology",
          "orig": "en:Entomology",
          "parents": [
            "Arthropodology",
            "Zoology",
            "Biology",
            "Sciences",
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            "Fundamental"
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          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Libellulid dragonflies",
          "orig": "en:Libellulid dragonflies",
          "parents": [
            "Dragonflies and damselflies",
            "Insects",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A species of libellulid dragonfly, Diplacodes trivialis, of Asia, Australia, and New Guinea."
      ],
      "id": "en-chalky_percher-en-noun-6wRB-qpG",
      "links": [
        [
          "entomology",
          "entomology"
        ],
        [
          "libellulid",
          "libellulid"
        ],
        [
          "dragonfly",
          "dragonfly"
        ]
      ],
      "raw_glosses": [
        "(entomology) A species of libellulid dragonfly, Diplacodes trivialis, of Asia, Australia, and New Guinea."
      ],
      "topics": [
        "biology",
        "entomology",
        "natural-sciences"
      ]
    }
  ],
  "word": "chalky percher"
}

{
  "forms": [
    {
      "form": "chalky perchers",
      "tags": [
        "plural"
      ]
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  ],
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      "expansion": "chalky percher (plural chalky perchers)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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    {
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        "English countable nouns",
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        "English multiword terms",
        "English nouns",
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        "en:Entomology",
        "en:Libellulid dragonflies"
      ],
      "glosses": [
        "A species of libellulid dragonfly, Diplacodes trivialis, of Asia, Australia, and New Guinea."
      ],
      "links": [
        [
          "entomology",
          "entomology"
        ],
        [
          "libellulid",
          "libellulid"
        ],
        [
          "dragonfly",
          "dragonfly"
        ]
      ],
      "raw_glosses": [
        "(entomology) A species of libellulid dragonfly, Diplacodes trivialis, of Asia, Australia, and New Guinea."
      ],
      "topics": [
        "biology",
        "entomology",
        "natural-sciences"
      ]
    }
  ],
  "word": "chalky percher"
}