powder down

powder down
noun
: modified down feathers in some birds (as herons, parrots, tinamous, frogmouths) that grow continuously and disintegrate at the ends

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modified down feathers that continually crumble at the tips, producing a fine powder that forms a bloom on the plumage of certain birds, as pigeons and herons.

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powder down noun
A kind of down on some birds that readily disintegrates in powder
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Main Entry: ↑powder

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powder down,
downy feathers that grow indefinitely and continually crumble at their ends into a kind of powder. They are found especially in the herons.

Useful english dictionary. 2012.

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Look at other dictionaries:

  • Powder down — is a special type of down feathers. They occur in a few groups of apparently unrelated birds and thus are probably evolutionary homoplasies. These down feathers differ from the usual down as they are exceptionally fine and produce a dust between… …   Wikipedia

  • Powder down — Powder Pow der, n. [OE. poudre, pouldre, F. poudre, OF. also poldre, puldre, L. pulvis, pulveris: cf. pollen fine flour, mill dust, E. pollen. Cf. {Polverine}, {Pulverize}.] 1. The fine particles to which any dry substance is reduced by pounding …   The Collaborative International Dictionary of English

  • Powder-down feather — Powder Pow der, n. [OE. poudre, pouldre, F. poudre, OF. also poldre, puldre, L. pulvis, pulveris: cf. pollen fine flour, mill dust, E. pollen. Cf. {Polverine}, {Pulverize}.] 1. The fine particles to which any dry substance is reduced by pounding …   The Collaborative International Dictionary of English

  • Powder-down patch — Powder Pow der, n. [OE. poudre, pouldre, F. poudre, OF. also poldre, puldre, L. pulvis, pulveris: cf. pollen fine flour, mill dust, E. pollen. Cf. {Polverine}, {Pulverize}.] 1. The fine particles to which any dry substance is reduced by pounding …   The Collaborative International Dictionary of English

  • powder down — modified down feathers that continually crumble at the tips, producing a fine powder that forms a bloom on the plumage of certain birds, as pigeons and herons. * * * …   Universalium

  • powder-down — …   Useful english dictionary

  • Down feather — The down of birds is a layer of fine feathers found under the tougher exterior feathers. Very young birds are clad only in down. Powder down is a specialized type of down found only in a few groups of birds. Down is a fine thermal insulator and… …   Wikipedia

  • Powder — Pow der, n. [OE. poudre, pouldre, F. poudre, OF. also poldre, puldre, L. pulvis, pulveris: cf. pollen fine flour, mill dust, E. pollen. Cf. {Polverine}, {Pulverize}.] 1. The fine particles to which any dry substance is reduced by pounding,… …   The Collaborative International Dictionary of English

  • Powder hose — Powder Pow der, n. [OE. poudre, pouldre, F. poudre, OF. also poldre, puldre, L. pulvis, pulveris: cf. pollen fine flour, mill dust, E. pollen. Cf. {Polverine}, {Pulverize}.] 1. The fine particles to which any dry substance is reduced by pounding …   The Collaborative International Dictionary of English

  • Powder hoy — Powder Pow der, n. [OE. poudre, pouldre, F. poudre, OF. also poldre, puldre, L. pulvis, pulveris: cf. pollen fine flour, mill dust, E. pollen. Cf. {Polverine}, {Pulverize}.] 1. The fine particles to which any dry substance is reduced by pounding …   The Collaborative International Dictionary of English

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