英语词汇“powder-down”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

powder-down

/ˈpaʊdədaʊn/

Ornithology

noun

A down feather which grows continuously and disintegrates into a powder at the tips instead of being moulted (more fully powder-down feather); such feathers collectively, which occur in patches on certain birds, as herons, toucans, parrots, and bowerbirds, the powder being used in cleaning the plumage.

Origin

Mid 19th century; earliest use found in Proceedings of the Zoological Society of London. From powder + down, after German Puder-dune from Puder (from French poudre) + Dune, variant of Daune.

单词	powder-down
释义	powder-down /ˈpaʊdədaʊn/ Ornithology noun A down feather which grows continuously and disintegrates into a powder at the tips instead of being moulted (more fully powder-down feather); such feathers collectively, which occur in patches on certain birds, as herons, toucans, parrots, and bowerbirds, the powder being used in cleaning the plumage. Origin Mid 19th century; earliest use found in Proceedings of the Zoological Society of London. From powder + down, after German Puder-dune from Puder (from French poudre) + Dune, variant of Daune.
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