- the carbon rod through which current is conducted between the electrode holder and the arc in carbon arc lighting or welding.
- the rod or plate, composed in part of carbon, used in batteries.
Origin of carbon
Examples from the Web for carbon
Methane (chemical formula CH4) is one of the simplest hydrocarbons, which literally means “containing hydrogen and carbon.”
It reacts very readily with oxygen by burning smokelessly, with carbon dioxide and water as its byproducts.
Other psychiatrists attempted to treat schizophrenia with carbon dioxide gas and artificially-induced comas.
And “stinking rich” is the smell of zero carbon emissions at eco-friendly tech company campuses.Up To a Point: Robber Barons Make Way For Robber Nerds|P. J. O’Rourke|August 9, 2014|DAILY BEAST
He plants a tree in Central America for every bottle of Tru spirits he sells to offset the carbon produced in manufacturing.
Carbon, hydrogen, oxygen and nitrogen are all lifeless bodies.Lay Sermons, Addresses and Reviews|Thomas Henry Huxley
The maple tree has been built out of muddy water and carbon gas.Earth and Sky Every Child Should Know|Julia Ellen Rogers
Well might Bergman express astonishment at the action of carbon on iron.
At the present time the carbon dioxide was being absorbed by chemical means.First on the Moon|Jeff Sutton
The green part of the leaf aided by the sun takes hold of the gas and separates the carbon from the oxygen.The First Book of Farming|Charles L. Goodrich
British Dictionary definitions for carbon
- a nonmetallic element existing in the three crystalline forms: graphite, diamond, and buckminsterfullerene: occurring in carbon dioxide, coal, oil, and all organic compounds. The isotope carbon-12 has been adopted as the standard for atomic wt; carbon-14, a radioisotope with a half-life of 5700 years, is used in radiocarbon dating and as a tracer. Symbol: C; atomic no: 6; atomic wt: 12.011; valency: 2, 3, or 4; relative density: 1.8–2.1 (amorphous), 1.9–2.3 (graphite), 3.15–3.53 (diamond); sublimes at 3367±25°C; boiling pt: 4827°C
- (as modifier)a carbon compound
Word Origin for carbon
Word Origin and History for carbon
non-metallic element, 1789, coined 1787 in French by Lavoisier as charbone, from Latin carbonem (nominative carbo) "a coal, glowing coal; charcoal," from PIE root *ker- (4) "heat, fire, to burn" (cf. Latin cremare "to burn;" Sanskrit krsna "black, burnt," kudayati "singes;" Lithuanian kuriu "to heat," karštas "hot," krosnis "oven;" Old Church Slavonic kurjo "to smoke," krada "fireplace, hearth;" Russian ceren "brazier;" Old High German harsta "roasting;" Gothic hauri "coal;" Old Norse hyrr "fire;" Old English heorð "hearth").
Carbon 14, long-lived radioactive isotope used in dating organic deposits, is from 1936. Carbon dating (using carbon 14) is recorded from 1958. Carbon cycle is attested from 1912. Carbon footprint was in use by 2001. Carbon paper (soon to be obsolete) is from 1895.
Medicine definitions for carbon
n. Symbol C
Science definitions for carbon
Culture definitions for 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 (see also organic molecule).)