brass

B0456900 (brăs)n.1. a. A yellowish alloy of copper and zinc, sometimes including small amounts of other metals, but usually 67 percent copper and 33 percent zinc.b. Ornaments, objects, or utensils made of this alloy.2. often brasses Music a. The section of a band or an orchestra composed of brass instruments.b. Brass instruments or their players considered as a group.3. A memorial plaque or tablet made of brass, especially one on which an effigy is incised.4. A bushing or similar lining for a bearing, made from a copper alloy.5. Informal Bold self-assurance; effrontery.6. Slang High-ranking military officers or other high officials.7. Chiefly British Money.

[Middle English bras, from Old English bræs.]

brass adj.

brass

(brɑːs) n1. (Metallurgy) an alloy of copper and zinc containing more than 50 per cent of copper. Alpha brass (containing less than 35 per cent of zinc) is used for most engineering materials requiring forging, pressing, etc. Alpha-beta brass (35–45 per cent zinc) is used for hot working and extrusion. Beta brass (45–50 per cent zinc) is used for castings. Small amounts of other metals, such as lead or tin, may be added. Compare bronze¹2. an object, ornament, or utensil made of brass3. (Instruments) a. the large family of wind instruments including the trumpet, trombone, French horn, etc, each consisting of a brass tube blown directly by means of a cup- or funnel-shaped mouthpieceb. (sometimes functioning as plural) instruments of this family forming a section in an orchestrac. (as modifier): a brass ensemble. 4. (Mechanical Engineering) a renewable sleeve or bored semicylindrical shell made of brass or bronze, used as a liner for a bearing5. (Military) (functioning as plural) informal important or high-ranking officials, esp military officers: the top brass. See also brass hat6. dialect Northern English money: where there's muck, there's brass!. 7. (Ecclesiastical Terms) Brit an engraved brass memorial tablet or plaque, set in the wall or floor of a church8. informal bold self-confidence; cheek; nerve: he had the brass to ask for more time. 9. (Professions) slang a prostitute10. (modifier) of, consisting of, or relating to brass or brass instruments: a brass ornament; a brass band. [Old English bræs; related to Old Frisian bres copper, Middle Low German bras metal]

brass

(bræs, brɑs)

n. 1. any of various metal alloys consisting mainly of copper and zinc. 2. a. an ornament, utensil, piece of hardware, or other article made of brass. b. such articles collectively. 3. a. brass instrument. b. Often, brasses. the brass instruments of a band or orchestra. 4. a. high-ranking military officers. b. any high officials. 5. excessive self-assurance; impudence. 6. a semicylindrical shell, usu. of bronze, used to line a bearing. 7. a brass memorial tablet. adj. 8. of, made of, or pertaining to brass. 9. having the color brass. [before 1000; Middle English bras, Old English bræs; c. Old Frisian bres copper, Middle Low German bras metal]

brass

(brăs) A yellowish alloy of copper and zinc, usually 67 percent copper and 33 percent zinc. It sometimes includes small amounts of other metals. Brass is characterized by being strong and ductile, and by being resistant to many forms of corrosion.

Brass

See also art; metals; ornamentation.
chalcologuea student of brasses.chalcomancya technique of divination by examining vessels of brass.chalcotriptone who copies monumental brasses by taking rubbings.

Brass

army officers collectively, 1899 [used in phrases top brass or brass hats]; memorial brasses collectively, 1613; musical instrument of a brass band type collectively, 1382; copper coins collectively, 1599; money in general, 1601.

Thesaurus

Noun	1.	brass - an alloy of copper and zincatomic number 29, copper, Cu - a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductoralpha-beta brass, Muntz metal, yellow metal - a brass that has more zinc and is stronger than alpha brass; used in making castings and hot-worked productsalpha brass - an alloy of brass and zinc; used mainly for cold workingbearing brass - a brass bushing or a lining for a bearingcartridge brass - an alloy of copper and zinc (containing about 30% zinc) that is wrought into cartridges or tubingcopper-base alloy - any alloy whose principal component is coppergilding metal - a brass that is rich in copper; used to make articles that were to be gildedhigh brass - brass with 35% zinclatten - brass (or a yellow alloy resembling brass) that was hammered into thin sheets; formerly used for church utensilslow brass - brass with 30% (or less) zincormolu - brass that looks like gold; used to decorate furnitureguinea gold, red brass - brass with enough copper to give it a reddish tint; used for plumbing pipe and other brass hardware and in cheap jewelry
	2.	brass - a wind instrument that consists of a brass tube (usually of variable length) that is blown by means of a cup-shaped or funnel-shaped mouthpiecebrass instrumentbaritone horn, baritone - the second lowest brass wind instrumentbass horn, sousaphone, tuba - the lowest brass wind instrumentbugle - a brass instrument without valves; used for military calls and fanfaresclarion - a medieval brass instrument with a clear shrill tonecornet, trumpet, trump, horn - a brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valvesfluegelhorn, flugelhorn - a brass instrument resembling a cornet but with a wider boreFrench horn, horn - a brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valvessaxhorn - any of a family of brass wind instruments that resemble a bugle with valvestrombone - a brass instrument consisting of a long tube whose length can be varied by a U-shaped slidevalve - device in a brass wind instrument for varying the length of the air column to alter the pitch of a tonewind instrument, wind - a musical instrument in which the sound is produced by an enclosed column of air that is moved by the breath
	3.	brass - the persons (or committees or departments etc.) who make up a body for the purpose of administering something; "he claims that the present administration is corrupt"; "the governance of an association is responsible to its members"; "he quickly became recognized as a member of the establishment"governance, governing body, organisation, administration, establishment, organizationbody - a group of persons associated by some common tie or occupation and regarded as an entity; "the whole body filed out of the auditorium"; "the student body"; "administrative body"authorities, government, regime - the organization that is the governing authority of a political unit; "the government reduced taxes"; "the matter was referred to higher authorities"Curia - (Roman Catholic Church) the central administration governing the Roman Catholic Churchtop brass - the most important persons in a governing bodyexecutive - persons who administer the lawjudiciary, bench - persons who administer justicecounty council - the elected governing body of a countygovernment officials, officialdom - people elected or appointed to administer a governmentpecking order, power structure, hierarchy - the organization of people at different ranks in an administrative bodymanagement - those in charge of running a businessadvisory board, planning board - a board appointed to advise the chief administrator
	4.	brass - impudent aggressiveness; "I couldn't believe her boldness"; "he had the effrontery to question my honesty"boldness, nerve, cheek, faceaggressiveness - the quality of being bold and enterprisingaudaciousness, audacity - aggressive boldness or unmitigated effrontery; "he had the audacity to question my decision"
	5.	brass - an ornament or utensil made of brassdecoration, ornament, ornamentation - something used to beautify
	6.	brass - the section of a band or orchestra that plays brass instrumentsbrass sectionsection - a division of an orchestra containing all instruments of the same classtrumpet section - the section of a band or orchestra that plays trumpets or cornets
	7.	brass - a memorial made of brass memorial tablet, plaquemonument, memorial - a structure erected to commemorate persons or events

brass

noun1. Informal. The state or quality of being impudent or arrogantly self-confident:assumption, audaciousness, audacity, boldness, brashness, brazenness, cheek, cheekiness, chutzpah, discourtesy, disrespect, effrontery, face, familiarity, forwardness, gall, impertinence, impudence, impudency, incivility, insolence, nerve, nerviness, overconfidence, pertness, presumptuousness, pushiness, rudeness, sassiness, sauciness.Informal: crust, sauce, uppishness, uppityness.2. Chiefly British. Something, such as coins or printed bills, used as a medium of exchange:cash, currency, lucre, money.Informal: wampum.Slang: bread, cabbage, dough, gelt, green, jack, lettuce, long green, mazuma, moola, scratch.

Translations

黄铜铜管乐器

brass

(braːs) noun1. an alloy of copper and zinc. This plate is made of brass; (also adjective) a brass door-knocker.黄铜2. wind musical instruments which are made of brass or other metal. 铜管乐器ˈbrassy adjective似黄铜的brass band a band of players of (mainly) brass wind instruments. 铜管乐队brass neck shameless cheek or impudence. After breaking off the engagement she had the brass neck to keep the ring.厚脸皮get down to brass tacks to deal with basic principles or matters. Let's stop arguing about nothing and get down to brass tacks. 谈要点，触及问题的核心

brass

→ 黄铜zhCN

brass

brass,

alloyalloy
[O. Fr.,=combine], substance with metallic properties that consists of a metal fused with one or more metals or nonmetals. Alloys may be a homogeneous solid solution, a heterogeneous mixture of tiny crystals, a true chemical compound, or a mixture of these.
..... Click the link for more information. having copper (55%–90%) and zinc (10%–45%) as its essential components. The properties of brass vary with the proportion of copper and zinc and with the addition of small amounts of other elements, such as aluminum, lead, tin, or nickel. In general brass can be forged or hammered into various shapes, rolled into thin sheets, drawn into wires, and machined and cast. Its ductility reaches a maximum with about 30% zinc and its tensile strength with 45%—although this property varies greatly with the mechanical and heat treatment of the alloy. Cartridge brass (70% copper, 30% zinc) is used for cartridge cases, plumbing and lighting fixtures, rivets, screws, and springs. Aluminum brass (not exceeding 3% aluminum) has greater resistance to corrosion than ordinary brass. Brass containing tin (not exceeding 2%) is less liable to corrosion in seawater; it is sometimes called naval brass and is used in naval construction. Dutch metal (80%–85% copper, 15%–20% zinc) is used as a substitute for gold leaf. When iron is added to brass it produces hard, tough alloys. One of these is delta metal (55% copper, 41% zinc, 1%–3% iron, and fractional percentages of tin and manganese), which can be forged, rolled, or cast and is used for bearings, valves, and ship propellers.

brass

Any copper alloy having zinc as the principal alloying element, but often with small quantities of other elements.

Brass

a copper-based alloy in which the main additive is zinc (up to 50 percent). Brass was smelted even before the Common Era; until the late 18th century it was produced by fusion of copper with zinc ore mixed with charcoal. Only in the 19th century was this method generally replaced by direct fusion of copper with zinc.

Because of its good hot and cold pressure workability, excellent mechanical properties, attractive color, and relatively low cost, brass is the most common copper alloy. It is produced in the form of sheets, ribbons, rods, tubes, and wire (deformable brass), as well as ingots (cast brass). As the zinc content increases, the color of brass changes from reddish to light yellow. In Russia, brass was called yellow copper rather than red copper.

Simple brasses are alloys of copper only with zinc. Brasses containing up to 10 percent zinc are called tombacs; those containing 10–20 percent zinc are called half-tombacs (low brasses). These alloys, which are characterized by high corrosion resistance and plasticity, are used for making radiator and condenser pipes, as well as sheets and bands for cladding steel. Brass containing about 30 percent zinc and suitable for extensive drawing is called cartridge brass and is widely used for making parts by cold stamping, as well as by molding and drawing.

Aluminum, tin, iron, manganese, nickel, silicon, and lead (up to a total content of about 10 percent) are added to double alloys of copper with zinc to improve their mechanical, anticorrosion, and other characteristics. Multicomponent (or special) brasses are called aluminum, silicon, aluminonickel, and ferroman-ganese brasses. Brass containing about 15 percent zinc and 0.5 percent aluminum has an attractive gold color and is highly resistant to atmospheric corrosion. It is used as a substitute for gold in decorations and objets d’art. Brass with up to 1.5 percent tin added (called naval brass) has improved resistance to corrosion in seawater. The addition of lead (up to 3 percent) makes brass chips brittle and makes possible the production of very smooth surfaces by cutting. Lead brasses are used in the manufacture of motor vehicles and in clock and watch production (clock brasses).

Many brasses containing more than 20–30 percent zinc are susceptible to corrosion cracking caused by the simultaneous action of residual stresses in articles and the corrosive effect of ammonia and sulfur dioxide (in a moist atmosphere). This effect is called the seasonal sickness of brass, since increased corrosion cracking occurs in months with increased moisture in the air. Such cracking is reduced by annealing at 250°-300°C to reduce the residual stresses.

Brass is also used in general mechanical engineering, instrument-making, and heat engineering.

REFERENCE

Smiriagin, A. P. Promyshlennye tsvetnye metally i splavy, 2nd ed. Moscow, 1956.

I. I. NOVIKOV

brass

[bras] (geology) A British term for sulfides of iron (pyrites) in coal. Also known as brasses. (metallurgy) A copper-zinc alloy of varying proportions but typically containing 67% copper and 33% zinc.

brass

1. Any copper alloy having zinc as the principal alloying element, but often with small quantities of other elements. 2. A plate of brass with memorial inscription and sometimes an effigy engraved on it, set into a church floor to mark a tomb.

brass

1. an alloy of copper and zinc containing more than 50 per cent of copper. Alpha brass (containing less than 35 per cent of zinc) is used for most engineering materials requiring forging, pressing, etc. Alpha-beta brass (35--45 per cent zinc) is used for hot working and extrusion. Beta brass (45--50 per cent zinc) is used for castings. Small amounts of other metals, such as lead or tin, may be added 2. a. the large family of wind instruments including the trumpet, trombone, French horn, etc., each consisting of a brass tube blown directly by means of a cup- or funnel-shaped mouthpiece b. instruments of this family forming a section in an orchestra 3. a renewable sleeve or bored semicylindrical shell made of brass or bronze, used as a liner for a bearing 4. Brit an engraved brass memorial tablet or plaque, set in the wall or floor of a church

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REFERENCE

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Synonyms for brass

noun the state or quality of being impudent or arrogantly self-confident

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noun something, such as coins or printed bills, used as a medium of exchange

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Synonyms for brass

noun an alloy of copper and zinc

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noun a wind instrument that consists of a brass tube (usually of variable length) that is blown by means of a cup-shaped or funnel-shaped mouthpiece

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noun the persons (or committees or departments etc.) who make up a body for the purpose of administering something

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noun impudent aggressiveness

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noun an ornament or utensil made of brass

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noun the section of a band or orchestra that plays brass instruments

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noun a memorial made of brass

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