Definition of Carbon

1. Noun. An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds.

2. Noun. 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.
Exact synonyms: Carbon Paper
Generic synonyms: Paper

3. Noun. A copy made with carbon paper.
Exact synonyms: Carbon Copy
Generic synonyms: Copy

Definition of Carbon

1. n. 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.

2. n. 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.

Definition of Carbon

1. Noun. The chemical element (''symbol'' C) with an atomic number of 6. ¹

2. Noun. (countable informal) A sheet of carbon paper. ¹

3. Noun. (countable informal) A carbon copy. ¹

4. Noun. A fossil fuel that is made of impure carbon such as coal or charcoal. ¹

5. Noun. (context: ecology uncountable) Carbon dioxide, in the context of global warming and climate change. ¹

¹ Source:

Definition of Carbon

1. a nonmetallic element [n -S] : CARBONIC [adj]

Medical Definition of Carbon

1. Sixth element (Z=6) in the periodic table, has 6 protons, often described as the basis of life on earth because of its chemical properties, has potential for use with silicon as a low-activation structural material for fusion reactors, in the form silicon carbide. Carbon tiles are often used in plasma-facing components because its low Z makes carbon a relatively nice impurity. It is also useful as a neutron moderator. See: low-activation materials, plasma-facing components. Abbreviation: C (13 Nov 1997)

Carbon Pictures

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Lexicographical Neighbors of Carbon

carbomycin 3-O-acetyltransferase
carbon (current term)
carbon-14 dating
carbon-carbon double bond isomerases
carbon-carbon ligases
carbon-carbon lyases

Literary usage of Carbon

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1904)
"Some Preliminary Observations on the Assimilation of carbon Monoxide by ... During an investigation by one of us some years ago on " carbon Monoxide in some ..."

2. Transactions by Michigan State Medical Society (1903)
"COMBINED carbon. Authorities agree that an accurate determination of combined carbon in iron by the color method is practically impossible and state that ..."

3. Journal of the American Chemical Society by American Chemical Society (1893)
"Ullgren based his well-known method on the oxidation of carbon by chromic acid and used potassium bichromate and sulphuric acid for the quantitative ..."

4. Science by American Association for the Advancement of Science (1905)
"He adds: 'Under suitable conditions the occurrence of active contractions in an excised muscle is not accompanied by an increase in the rate at which carbon ..."

5. Standard Methods of Chemical Analysis: A Manual of Analytical Methods and by Wilfred Welday Scott (1922)
"0.2 to 1 gram of the powdered material, fine drillings, free carbon, or organic substance is placed in the decomposition flask. ..."

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