最終更新日：2025/11/29

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

A special type of down that occurs in a few groups of apparently unrelated birds. In some species, the tips of the barbules on the feathers disintegrate, forming fine particles of keratin; in others, powder grains come from cells that surround the barbules of growing feathers.

音声機能が動作しない場合はこちらをご確認ください

正解を見る

powder down

編集履歴（0）

元となった辞書の項目

powder down

不可算名詞

A special type of down that occurs in a few groups of apparently unrelated birds. In some species, the tips of the barbules on the feathers disintegrate, forming fine particles of keratin; in others, powder grains come from cells that surround the barbules of growing feathers.

日本語の意味

鳥類の一部の群れで見られる特殊な粉状ダウン。羽毛の細い毛羽（バーブール）の先端が分解して極細のケラチン粒子となるか、成長中の羽毛を取り囲む細胞から粉粒が生じる現象による羽毛の一部である

このボタンはなに？

The zookeeper explained that the parrots' powder down produces a fine dust that can irritate the lungs if inhaled.

Google翻訳 / DeepL翻訳

飼育員は、オウムの粉状羽毛が微細な角質の粒子を生じ、吸い込むと肺を刺激することがあると説明した。

意味（1）

A special type of down that occurs in a few groups of apparently unrelated birds. In some species, the tips of the barbules on the feathers disintegrate, forming fine particles of keratin; in others, powder grains come from cells that surround the barbules of growing feathers.

All parrots have powder down.

Google翻訳 / DeepL翻訳

ログイン / 新規登録

　

アプリをダウンロード！

DiQt（ディクト）

無料

★★★★★★★★★★