"pterylology" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pteryla",
        "3": "-ology"
      },
      "expansion": "pteryla + -ology",
      "name": "af"
    }
  ],
  "etymology_text": "From pteryla + -ology.",
  "head_templates": [
    {
      "args": {
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      "expansion": "pterylology (uncountable)",
      "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",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ology",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ornithology",
          "orig": "en:Ornithology",
          "parents": [
            "Zoology",
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1864, The Ibis, volume 6, page 198:",
          "text": "He gives some minute and valuable descriptions of the species, particularly as regards its pterylology and structure in comparison with other birds, as well as a detailed account of its habits, so as almost to justify the use of poisoned grain, which he seems to have tried in order to obtain specimens.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The study of distribution of feathers on birds."
      ],
      "id": "en-pterylology-en-noun-MfqcuiAu",
      "links": [
        [
          "ornithology",
          "ornithology"
        ],
        [
          "study",
          "study"
        ]
      ],
      "raw_glosses": [
        "(ornithology, obsolete, rare) The study of distribution of feathers on birds."
      ],
      "tags": [
        "obsolete",
        "rare",
        "uncountable"
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "ornithology"
      ]
    }
  ],
  "word": "pterylology"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pteryla",
        "3": "-ology"
      },
      "expansion": "pteryla + -ology",
      "name": "af"
    }
  ],
  "etymology_text": "From pteryla + -ology.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "pterylology (uncountable)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English lemmas",
        "English nouns",
        "English terms suffixed with -ology",
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        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Ornithology"
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      "examples": [
        {
          "ref": "1864, The Ibis, volume 6, page 198:",
          "text": "He gives some minute and valuable descriptions of the species, particularly as regards its pterylology and structure in comparison with other birds, as well as a detailed account of its habits, so as almost to justify the use of poisoned grain, which he seems to have tried in order to obtain specimens.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The study of distribution of feathers on birds."
      ],
      "links": [
        [
          "ornithology",
          "ornithology"
        ],
        [
          "study",
          "study"
        ]
      ],
      "raw_glosses": [
        "(ornithology, obsolete, rare) The study of distribution of feathers on birds."
      ],
      "tags": [
        "obsolete",
        "rare",
        "uncountable"
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "ornithology"
      ]
    }
  ],
  "word": "pterylology"
}