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powder down

noun

  1. 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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Example Sentences

He laughed and shouted heartily at the contrivance, and hurled the victim of their wasted powder down among them.

Hind toe elevated above plane of others; no powder down patches; bill not hooked at tip.

Powder-down feathers are degenerate down-feathers which appear to secrete a dry, waxy kind of powder.

There are several different kinds of feathers—contour feathers, semiplumes, down-feathers, filoplumes and powder-down.

The powder-down patches of the oil bird are upon each side of the rump.

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