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carbohydrate loading
carbolic acid
carbon 12
carbon 13
carbon 14
carbon arc
carbon arc lamp
carbon atom
carbon bisulfide
carbon black
Carbon compounds
carbon copy
carbon credit
carbon cycle
carbon dating
carbon dichloride

Carbon definitions

Webster's 1828 Dictionary

CARBON, n. Pure charcoal; a simple body, black, brittle, light and inodorous. It is usually the remains of some vegetable body, from which all its volatile matter has been expelled by heat. When crystalized, it forms the diamond; and by means of a galvanic apparatus, it is found to be capable of fusion.

WordNet (r) 3.0 (2005)

1: an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds [syn: carbon, C, atomic number 6]
2: a thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper [syn: carbon paper, carbon]
3: a copy made with carbon paper [syn: carbon, carbon copy]

Merriam Webster's

noun Usage: often attributive Etymology: French carbone, from Latin carbon-, carbo ember, charcoal Date: 1789 1. a nonmetallic chiefly tetravalent element found native (as in diamond and graphite) or as a constituent of coal, petroleum, and asphalt, of limestone and other carbonates, and of organic compounds or obtained artificially in varying degrees of purity especially as carbon black, lampblack, activated carbon, charcoal, and coke see element table 2. a carbon rod used in an arc lamp 3. a. a sheet of carbon paper b. carbon copy

Britannica Concise

Nonmetallic chemical element, chemical symbol C, atomic number 6. The usual stable isotope is carbon-12; carbon-13, another stable isotope, is 1% of natural carbon. Carbon-14 is the most stable and best known of five radioactive isotopes (see radioactivity); its half-life of approximately 5,730 years makes it useful in radiocarbon dating and radiolabeling of research compounds. Carbon occurs in three allotropes: diamond, graphite, and carbon black (amorphous carbon), incl. coal, coke, and charcoal. Carbon forms more compounds than all other elements combined; several million are known. Each carbon atom forms four bonds (four single bonds, two single and one double bond, two double bonds, or one single and one triple bond) with up to four other atoms. Multitudes of chain, branched, ring, and three-dimensional structures can occur. The study of these carbon compounds and their properties and reactions is organic chemistry. With hydrogen, oxygen, nitrogen, and a few other elements whose small amounts belie their important roles, carbon forms the compounds that make up all living things: proteins, carbohydrates, lipids, and nucleic acids. Biochemistry is the study of how those compounds are synthesized and broken down and how they associate with each other in living organisms. Organisms consume carbon and return it to the environment in the carbon cycle. Carbon dioxide, produced when carbon is burned, is about 0.03% of air, and carbon occurs in the earth's crust as carbonate rocks and the hydrocarbons in coal, petroleum, and natural gas. The oceans contain large amounts of dissolved carbon dioxide and carbonates.

Dictionary of the Elements

Symbol: C
Atomic number: 6
Atomic weight: 12.01115
Carbon is a member of group 14 of the periodic table. It has three allotropic forms of it, diamonds, graphite and fullerite. Carbon-14 is commonly used in radioactive dating. Carbon occurs in all organic life and is the basis of organic chemistry. Carbon has the interesting chemical property of being able to bond with itself, and a wide variety of other elements.

Oxford Reference Dictionary

n. 1 a non-metallic element occurring naturally as diamond, graphite, and charcoal, and in all organic compounds. Usage: Symb.: C. 2 a = carbon copy. b = carbon paper. 3 a rod of carbon in an arc lamp. Phrases and idioms: carbon black a fine carbon powder made by burning hydrocarbons in insufficient air. carbon copy 1 a copy made with carbon paper. 2 a person or thing identical or similar to another (is a carbon copy of his father). carbon cycle Biol. the cycle in which carbon compounds are interconverted, usu. by living organisms. carbon dating the determination of the age of an organic object from the ratio of isotopes which changes as carbon-14 decays. carbon dioxide a colourless odourless gas occurring naturally in the atmosphere and formed by respiration. Usage: Chem. formula: CO2 carbon disulphide a colourless liquid used as a solvent. Usage: Chem. formula: CS2 carbon fibre a thin strong crystalline filament of carbon used as strengthening material in resins, ceramics, etc. carbon-14 a long-lived radioactive carbon isotope of mass 14, used in radiocarbon dating, and as a tracer in biochemistry. carbon monoxide a colourless odourless toxic gas formed by the incomplete burning of carbon. Usage: Chem. formula: CO carbon paper a thin carbon-coated paper used for making (esp. typed) copies. carbon steel a steel with properties dependent on the percentage of carbon present. carbon tetrachloride a colourless volatile liquid used as a solvent. Usage: Chem. formula: CCl4 carbon-12 a carbon isotope of mass 12, used in calculations of atomic mass units. Etymology: F carbone f. L carbo -onis charcoal

Webster's 1913 Dictionary

Carbon Car"bon, n. (Elec.) A carbon rod or pencil used in an arc lamp; also, a plate or piece of carbon used as one of the elements of a voltaic battery.

Webster's 1913 Dictionary

Carbon Car"bon (k[aum]r"b[o^]n), n. [F. carbone, fr. L. carbo coal; cf. Skr. [,c]r[=a] to cook.] (Chem.) An elementary substance, not metallic in its nature, which is present in all organic compounds. Atomic weight 11.97. Symbol C. it is combustible, and forms the base of lampblack and charcoal, and enters largely into mineral coals. In its pure crystallized state it constitutes the diamond, the hardest of known substances, occuring in monometric crystals like the octahedron, etc. Another modification is graphite, or blacklead, and in this it is soft, and occurs in hexagonal prisms or tables. When united with oxygen it forms carbon dioxide, commonly called carbonic acid, or carbonic oxide, according to the proportions of the oxygen; when united with hydrogen, it forms various compounds called hydrocarbons. Compare Diamond, and Graphite. Carbon compounds, Compounds of carbon (Chem.), those compounds consisting largely of carbon, commonly produced by animals and plants, and hence called organic compounds, though their synthesis may be effected in many cases in the laboratory. The formation of the compounds of carbon is not dependent upon the life process. --I. Remsen Carbon dioxide, Carbon monoxide. (Chem.) See under Carbonic. Carbon light (Elec.), an extremely brilliant electric light produced by passing a galvanic current through two carbon points kept constantly with their apexes neary in contact. Carbon point (Elec.), a small cylinder or bit of gas carbon moved forward by clockwork so that, as it is burned away by the electric current, it shall constantly maintain its proper relation to the opposing point. Carbon tissue, paper coated with gelatine and pigment, used in the autotype process of photography. --Abney. Gas carbon, a compact variety of carbon obtained as an incrustation on the interior of gas retorts, and used for the manufacture of the carbon rods of pencils for the voltaic, arc, and for the plates of voltaic batteries, etc.

Collin's Cobuild Dictionary

Frequency: The word is one of the 3000 most common words in English. Carbon is a chemical element that diamonds and coal are made up of.

Moby Thesaurus

alcohol, apograph, ash, ashes, benzine, brand, briquette, burnable, butane, calx, carbon copy, charcoal, cinder, clinker, coal, coke, combustible, coom, copy, ditto, dope, dross, duplicate, ethane, ethanol, facsimile, fiche, fireball, firing, flammable, flammable material, fuel, fuel additive, fuel dope, fume, gas, gas carbon, gasoline, heptane, hexane, inflammable, inflammable material, isooctane, jet fuel, kerosene, lava, manifold, methane, methanol, microcopy, microfiche, microform, natural gas, octane, oil, paraffin, peat, pentane, propane, propellant, recording, reduplication, reek, replica, replication, rocket fuel, rubbing, scoria, slag, smoke, smudge, smut, soot, sullage, tenor, tracing, transcript, transcription, transfer, turf


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