callaeid
A system of gears that has a central gear wheel (sun gear) around which others (planet gears) rotate, often within an outer ring.
(zoology) Any bird in the family Callaeidae.
A linguist who specialises in studying Cushitic languages.
A surname from Italian.
カラエイデ科に属する鳥は林床を跳ねながら落ち葉をつついて虫を探し、明るい肉垂（ワトル）を震わせていた。
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