资料来源 : Webster's Revised Unabridged Dictionary (1913)
Metal \Met"al\ (? or ?; 277), n. [F. m['e]tal, L. metallum
metal, mine, Gr. ? mine; cf. Gr. ? to search after. Cf.
{Mettle}, {Medal}.]
1. (Chem.) An elementary substance, as sodium, calcium, or
copper, whose oxide or hydroxide has basic rather than
acid properties, as contrasted with the nonmetals, or
metalloids. No sharp line can be drawn between the metals
and nonmetals, and certain elements partake of both acid
and basic qualities, as chromium, manganese, bismuth, etc.
Note: Popularly, the name is applied to certain hard, fusible
metals, as gold, silver, copper, iron, tin, lead, zinc,
nickel, etc., and also to the mixed metals, or metallic
alloys, as brass, bronze, steel, bell metal, etc.
2. Ore from which a metal is derived; -- so called by miners.
--Raymond.
3. A mine from which ores are taken. [Obs.]
Slaves . . . and persons condemned to metals. --Jer.
Taylor.
4. The substance of which anything is made; material; hence,
constitutional disposition; character; temper.
Not till God make men of some other metal than
earth. --Shak.
5. Courage; spirit; mettle. See {Mettle}. --Shak.
Note: The allusion is to the temper of the metal of a sword
blade. --Skeat.
6. The broken stone used in macadamizing roads and ballasting
railroads.
7. The effective power or caliber of guns carried by a vessel
of war.
8. Glass in a state of fusion. --Knight.
9. pl. The rails of a railroad. [Eng.]
{Base metal} (Chem.), any one of the metals, as iron, lead,
etc., which are readily tarnished or oxidized, in contrast
with the noble metals. In general, a metal of small value,
as compared with gold or silver.
{Fusible metal} (Metal.), a very fusible alloy, usually
consisting of bismuth with lead, tin, or cadmium.
{Heavy metals} (Chem.), the metallic elements not included in
the groups of the alkalies, alkaline earths, or the
earths; specifically, the heavy metals, as gold, mercury,
platinum, lead, silver, etc.
{Light metals} (Chem.), the metallic elements of the alkali
and alkaline earth groups, as sodium, lithium, calcium,
magnesium, etc.; also, sometimes, the metals of the
earths, as aluminium.
{Muntz metal}, an alloy for sheathing and other purposes,
consisting of about sixty per cent of copper, and forty of
zinc. Sometimes a little lead is added. It is named from
the inventor.
{Prince's metal} (Old Chem.), an alloy resembling brass,
consisting of three parts of copper to one of zinc; --
also called {Prince Rupert's metal}.
Muntz metal \Muntz" met`al\
See under {Metal}.
Composition \Com`po*si"tion\, n. [F. composition, fr. L.
compositio. See {Composite}.]
1. The act or art of composing, or forming a whole or
integral, by placing together and uniting different
things, parts, or ingredients. In specific uses:
(a) The invention or combination of the parts of any
literary work or discourse, or of a work of art; as,
the composition of a poem or a piece of music. ``The
constant habit of elaborate composition.'' --Macaulay.
(b) (Fine Arts) The art or practice of so combining the
different parts of a work of art as to produce a
harmonious whole; also, a work of art considered as
such. See 4, below.
(c) The act of writing for practice in a language, as
English, Latin, German, etc.
(d) (Print.) The setting up of type and arranging it for
printing.
2. The state of being put together or composed; conjunction;
combination; adjustment.
View them in composition with other things. --I.
Watts.
The elementary composition of bodies. --Whewell.
3. A mass or body formed by combining two or more substances;
as, a chemical composition.
A composition that looks . . . like marble.
--Addison.
4. A literary, musical, or artistic production, especially
one showing study and care in arrangement; -- often used
of an elementary essay or translation done as an
educational exercise.
5. Consistency; accord; congruity. [Obs.]
There is no composition in these news That gives
them credit. --Shak.
6. Mutual agreement to terms or conditions for the settlement
of a difference or controversy; also, the terms or
conditions of settlement; agreement.
Thus we are agreed: I crave our composition may be
written. --Shak.
7. (Law) The adjustment of a debt, or avoidance of an
obligation, by some form of compensation agreed on between
the parties; also, the sum or amount of compensation
agreed upon in the adjustment.
Compositions for not taking the order of knighthood.
--Hallam.
Cleared by composition with their creditors.
--Blackstone.
8. Synthesis as opposed to analysis.
The investigation of difficult things by the method
of analysis ought ever to precede the method of
composition. --Sir I.
Newton.
{Composition cloth}, a kind of cloth covered with a
preparation making it waterproof.
{Composition deed}, an agreement for composition between a
debtor and several creditors.
{Composition plane} (Crystallog.), the plane by which the two
individuals of a twin crystal are united in their reserved
positions.
{Composition of forces} (Mech.), the finding of a single
force (called the resultant) which shall be equal in
effect to two or more given forces (called the components)
when acting in given directions. --Herbert.
{Composition metal}, an alloy resembling brass, which is
sometimes used instead of copper for sheathing vessels; --
also called {Muntz metal} and {yellow metal}.
{Composition of proportion} (Math.), an arrangement of four
proportionals so that the sum of the first and second is
to the second as the sum of the third and fourth to the
fourth.
资料来源 : WordNet®
Muntz metal
n : a brass that has more zinc and is stronger than alpha brass;
used in making castings and hot-worked products [syn: {alpha-beta
brass}, {yellow metal}]