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单词	barbule
释义	barbule /ˈbɑːbjuːl / noun A minute filament projecting from the barb of a feather.Well known examples include the structural colors produced by brilliant iridescent butterfly wing scales and avian feather barbules, such as the peacocks tail.... The strongly iridescent colors of bird feathers are produced by arrays of melanin granules in the barbules of feathers. The barbs, in turn, may bear barbules which may hook on to the barbules of an adjoining barb. Origin Mid 19th century: from Latin barbula, diminutive of barba 'beard'.
随便看	pure play pure player pure-relational pure-rod pure sang pure science pur et dur pur et simple pure villeinage Purex purfle purflew purga purgable purgation purgative purgatively purgator purgatorial purgatorian purgatory Purgatory of St Patrick purge purgeable purge cock

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