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The Collaborative International Dictionary of English v.0.48 (gcide)

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, grinding, or triturating, or into which it
falls by decay; dust.
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Grind their bones to powder small. --Shak.
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2. An explosive mixture used in gunnery, blasting, etc.;
gunpowder. See {Gunpowder}.
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{Atlas powder}, {Baking powder}, etc. See under {Atlas},
{Baking}, etc.

{Powder down} (Zool.), the peculiar dust, or exfoliation, of
powder-down feathers.

{Powder-down feather} (Zool.), one of a peculiar kind of
modified feathers which sometimes form patches on certain
parts of some birds. They have a greasy texture and a
scaly exfoliation.

{Powder-down patch} (Zool.), a tuft or patch of powder-down
feathers.

{Powder hose}, a tube of strong linen, about an inch in
diameter, filled with powder and used in firing mines.
--Farrow.

{Powder hoy} (Naut.), a vessel specially fitted to carry
powder for the supply of war ships. They are usually
painted red and carry a red flag.

{Powder magazine}, or {Powder room}. See {Magazine}, 2.

{Powder mine}, a mine exploded by gunpowder. See {Mine}.

{Powder monkey} (Naut.), a boy formerly employed on war
vessels to carry powder; a powder boy.

{Powder post}. See {Dry rot}, under {Dry}.

{Powder puff}. See {Puff}, n.
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Powder \Pow"der\, v. t. [imp. & p. p. {Powdered}; p. pr. & vb.
n. {Powdering}.] [F. poudrer.]
1. To reduce to fine particles; to pound, grind, or rub into
a powder; to comminute; to pulverize; to triturate.
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2. To sprinkle with powder, or as with powder; to be
sprinkle; as, to powder the hair.
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A circling zone thou seest
Powdered with stars. --Milton.
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3. To sprinkle with salt; to corn, as meat. [Obs.]
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Powder \Pow"der\, v. i.
1. To be reduced to powder; to become like powder; as, some
salts powder easily.
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2. To use powder on the hair or skin; as, she paints and
powders.
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