【化】 铜粉

Bronze \Bronze\, n. [F. bronze, fr. It. bronzo brown, fr. OHG.
br?n, G. braun. See {Brown}, a.]
1. An alloy of copper and tin, to which small proportions of
other metals, especially zinc, are sometimes added. It is
hard and sonorous, and is used for statues, bells, cannon,
etc., the proportions of the ingredients being varied to
suit the particular purposes. The varieties containing the
higher proportions of tin are brittle, as in bell metal
and speculum metal.

2. A statue, bust, etc., cast in bronze.

A print, a bronze, a flower, a root. --Prior.

3. A yellowish or reddish brown, the color of bronze; also, a
pigment or powder for imitating bronze.

4. Boldness; impudence; ``brass.''

Imbrowned with native bronze, lo! Henley stands.
--Pope.

{Aluminium bronze}. See under {Aluminium}.

{Bronze age}, an age of the world which followed the stone
age, and was characterized by the use of implements and
ornaments of copper or bronze.

{Bronze powder}, a metallic powder, used with size or in
combination with painting, to give the appearance of
bronze, gold, or other metal, to any surface.

{Phosphor bronze} & {Silicious bronze} or {Silicium bronze}
are made by adding phosphorus and silicon respectively to
ordinary bronze, and are characterized by great tenacity.

Mosaic \Mo*sa"ic\, a.
Of or pertaining to the style of work called mosaic; formed
by uniting pieces of different colors; variegated;
tessellated; also, composed of various materials or
ingredients.

A very beautiful mosaic pavement. --Addison.

{Florentine mosaic}. See under {Florentine}.

{Mosaic gold}.
(a) See {Ormolu}.
(b) Stannic sulphide, {SnS2}, obtained as a yellow scaly
crystalline powder, and used as a pigment in bronzing and
gilding wood and metal work. It was called by the
alchemists {aurum musivum}, or {aurum mosaicum}. Called
also {bronze powder}.

{Mosaic work}. See {Mosaic}, n.