(inorganic chemistry) A colourless or white inorganic compound, CaCO₃, occurring as chalk, limestone, marble etc; reacts with acids to liberate carbon dioxide.

a process whereby trees and other plants remove carbon dioxide from the atmosphere and through photosynthesis, turn it into plant material

plural of carbon copy

(chiefly British spelling) Alternative spelling of carbon fiber

A very strong filament made by the pyrolysis of a synthetic fiber such as rayon. / A cloth or felt made from these fibers.

food-grade carbon black

(inorganic chemistry, countable) Synonym of bicarbonate / (inorganic chemistry, uncountable) carbonic acid

(physics, astronomy) the nucleosynthesis process, in stars of greater than 8 solar mass that have exhausted their helium supply, in which carbon is converted to neon, sodium, magnesium and other elements

(physics) a radioactive isotopes of carbon, ¹⁴₆C, having six protons and eight neutrons; it is used in radiocarbon dating

(physics) the less common of the two stable isotopes of carbon, ¹³₆C, having six protons and seven neutrons