| brass | | |
| n. (substance) | 1. brass | an alloy of copper and zinc. |
| ~ atomic 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 conductor. |
| ~ alpha-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 products. |
| ~ alpha brass | an alloy of brass and zinc; used mainly for cold working. |
| ~ bearing brass | a brass bushing or a lining for a bearing. |
| ~ cartridge brass | an alloy of copper and zinc (containing about 30% zinc) that is wrought into cartridges or tubing. |
| ~ copper-base alloy | any alloy whose principal component is copper. |
| ~ gilding metal | a brass that is rich in copper; used to make articles that were to be gilded. |
| ~ high brass | brass with 35% zinc. |
| ~ latten | brass (or a yellow alloy resembling brass) that was hammered into thin sheets; formerly used for church utensils. |
| ~ low brass | brass with 30% (or less) zinc. |
| ~ ormolu | brass that looks like gold; used to decorate furniture. |
| ~ guinea 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. |
| n. (artifact) | 2. brass, brass instrument | 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. |
| ~ baritone horn, baritone | the second lowest brass wind instrument. |
| ~ bass horn, sousaphone, tuba | the lowest brass wind instrument. |
| ~ bugle | a brass instrument without valves; used for military calls and fanfares. |
| ~ clarion | a medieval brass instrument with a clear shrill tone. |
| ~ cornet, 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 valves. |
| ~ fluegelhorn, flugelhorn | a brass instrument resembling a cornet but with a wider bore. |
| ~ french horn, horn | a brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves. |
| ~ saxhorn | any of a family of brass wind instruments that resemble a bugle with valves. |
| ~ trombone | a brass instrument consisting of a long tube whose length can be varied by a U-shaped slide. |
| ~ valve | device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone. |
| ~ wind instrument, wind | a musical instrument in which the sound is produced by an enclosed column of air that is moved by the breath. |
| n. (group) | 3. administration, brass, establishment, governance, governing body, organisation, organization | 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" |
| ~ body | 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 Church. |
| ~ top brass | the most important persons in a governing body. |
| ~ executive | persons who administer the law. |
| ~ judiciary, bench | persons who administer justice. |
| ~ county council | the elected governing body of a county. |
| ~ government officials, officialdom | people elected or appointed to administer a government. |
| ~ pecking order, power structure, hierarchy | the organization of people at different ranks in an administrative body. |
| ~ management | those in charge of running a business. |
| ~ advisory board, planning board | a board appointed to advise the chief administrator. |
| n. (attribute) | 4. boldness, brass, cheek, face, nerve | impudent aggressiveness.; "I couldn't believe her boldness"; "he had the effrontery to question my honesty" |
| ~ aggressiveness | the quality of being bold and enterprising. |
| ~ audaciousness, audacity | aggressive boldness or unmitigated effrontery.; "he had the audacity to question my decision" |
| n. (artifact) | 5. brass | an ornament or utensil made of brass. |
| ~ decoration, ornament, ornamentation | something used to beautify. |
| n. (group) | 6. brass, brass section | the section of a band or orchestra that plays brass instruments. |
| ~ section | a division of an orchestra containing all instruments of the same class. |
| ~ trumpet section | the section of a band or orchestra that plays trumpets or cornets. |
| n. (artifact) | 7. brass, memorial tablet, plaque | a memorial made of brass. |
| ~ monument, memorial | a structure erected to commemorate persons or events. |
| copper | | |
| n. (substance) | 1. atomic 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 conductor. |
| ~ metal, metallic element | any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.. |
| ~ bornite, peacock ore | a mineral consisting of sulfides of copper and iron that is found in copper deposits. |
| ~ chalcocite, copper glance | a heavy grey mineral that is an ore of copper. |
| ~ chalcopyrite, copper pyrites | a yellow copper ore (CuFeS2) made up of copper and iron sulfide. |
| ~ cuprite | a mineral consisting of cuprous oxide that is a source of copper. |
| ~ malachite | a green or blue mineral used as an ore of copper and for making ornamental objects. |
| ~ brass | an alloy of copper and zinc. |
| ~ bronze | an alloy of copper and tin and sometimes other elements; also any copper-base alloy containing other elements in place of tin. |
| ~ blister copper | an impure form of copper having a black blistered surface. |
| ~ conductor | a substance that readily conducts e.g. electricity and heat. |
| n. (possession) | 2. copper | a copper penny. |
| ~ cent, centime, penny | a coin worth one-hundredth of the value of the basic unit. |
| n. (person) | 3. bull, cop, copper, fuzz, pig | uncomplimentary terms for a policeman. |
| ~ colloquialism | a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech. |
| ~ police officer, policeman, officer | a member of a police force.; "it was an accident, officer" |
| n. (attribute) | 4. copper, copper color | a reddish-brown color resembling the color of polished copper. |
| ~ burnt sienna, reddish brown, sepia, venetian red, mahogany | a shade of brown with a tinge of red. |
| n. (animal) | 5. copper | any of various small butterflies of the family Lycaenidae having coppery wings. |
| ~ lycaenid, lycaenid butterfly | any of various butterflies of the family Lycaenidae. |
| ~ genus lycaena, lycaena | type genus of the Lycaenidae; small slender butterflies with upper surface of wings usually metallic blue or green or copper. |
| ~ american copper, lycaena hypophlaeas | common copper butterfly of central and eastern North America. |
| v. (contact) | 6. copper | coat with a layer of copper. |
| ~ coat, surface | put a coat on; cover the surface of; furnish with a surface.; "coat the cake with chocolate" |
| copper-base alloy | | |
| n. (substance) | 1. copper-base alloy | any alloy whose principal component is copper. |
| ~ alloy, metal | a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten.; "brass is an alloy of zinc and copper" |
| ~ brass | an alloy of copper and zinc. |
| ~ bronze | an alloy of copper and tin and sometimes other elements; also any copper-base alloy containing other elements in place of tin. |
| ~ cupronickel | a 60/40 alloy of copper and nickel. |
| ~ aluminium bronze, aluminum bronze | an alloy of copper and aluminum with high tensile strength and resistance to corrosion. |
| ~ constantan, eureka | an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire. |
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