car·bon   (kär'bən)    n.   Symbol C A naturally abundant nonmetallic element that occurs in many inorganic and in all organic compounds, exists freely as graphite and diamond and as a constituent of coal, limestone, and petroleum, and is capable of chemical self-bonding to form an enormous number of chemically, biologically, and commercially important molecules. Atomic number 6; atomic weight 12.011; sublimation point above 3,500°C; boiling point 4,827°C; specific gravity of amorphous carbon 1.8 to 2.1, of diamond 3.15 to 3.53, of graphite 1.9 to 2.3; valence 2, 3, 4. See Table at element. A sheet of carbon paper. A carbon copy. Either of two rods through which current flows to form an arc, as in lighting or welding. A carbonaceous electrode in an electric cell. Electricity Either of two rods through which current flows to form an arc, as in lighting or welding. A carbonaceous electrode in an electric cell. [French carbone, from Latin carbō, carbōn-, a coal, charcoal; see ker-3 in Indo-European roots.] car'bon·ous (-bə-nəs) adj.

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.

carbon

A chemical element; its symbol is C. The carbon nucleus has six protons and six or more neutrons; six electrons are in orbit around the carbon nucleus. (See hydrocarbons and organic molecules.)

Note: Carbon forms the basis for all living tissue.

carbon 

Main Entry: car·bon
Pronunciation: 'kär-b&n
Function: noun
often attributive : a nonmetallic element found native (as in diamonds andgraphite) or as a constituent of coal, petroleum, asphalt, limestone, and organic compounds or obtained artificially (as in activated charcoal) —symbol C; —see ELEMENT table

carbon car·bon (kär'bən)
n.
Symbol C
A nonmetallic element occuring in many inorganic and in all organic compounds, existing as graphite and diamond and as a constituent of coal, limestone, and petroleum, and capable of chemical self-bonding to form a number of important molecules. Atomic number 6; atomic weight 12.01115; sublimation point above 3,500°C; melting point 3,550°C; specific gravity of amorphous carbon 1.8 to 2.1, of diamond 3.15 to 3.53, of graphite 1.9 to 2.3; valence 2, 3, 4.

carbon   (kär'bən)  Pronunciation Key  Symbol C A naturally abundant, nonmetallic element that occurs in all organic compounds and can be found in all known forms of life. Diamonds and graphite are pure forms, and carbon is a major constituent of coal, petroleum, and natural gas. Carbon generally forms four covalent bonds with other atoms in larger molecules. Atomic number 6; atomic weight 12.011; sublimation point above 3,500°C; boiling point 4,827°C; specific gravity of amorphous carbon 1.8 to 2.1, of diamond 3.15 to 3.53, of graphite 1.9 to 2.3; valence 2, 3, 4. See Periodic Table. carbonaceous adjective

Carbon

county, eastern Pennsylvania, U.S., flanked to the north by the Pocono Mountains and to the south by Blue Mountain and located midway between the cities of Wilkes-Barre and Allentown. It consists of a mountainous region lying largely in the Appalachian Ridge and Valley physiographic province. The principal waterways are the Lehigh River and Tobyhanna, Quakake, Nesquehoning, Mahoning, Lizard, and Aquashicola creeks, as well as Penn Forest and Wild Creek reservoirs. State parks include Hickory Run, Lehigh Gorge, and Beltzville, which surrounds Beltzville Lake. The Appalachian National Scenic Trail follows the ridgeline of Blue Mountain

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