(physics) The most abundant of the two stable isotopes of carbon, ¹²₆C, having six protons and six neutrons; it is the standard for atomic weight and is used to define the mole.

(chemistry) A very absorbent form of finely powdered carbon; used in purifying gases, and as an antidote for many poisons.

an arc struck between the tip of a carbon electrode and a piece of metal being welded

(obsolete, inorganic chemistry) carbon dioxide

(inorganic chemistry) Alternative spelling of carbon disulfide

(inorganic chemistry) carbon disulfide

Alternative form of carbon disulfide

(biology) Describing any form of life based on the organic biopolymers present in all forms of life on Earth.

Attributive form of carbon copy.

(inorganic chemistry) A binary compound of carbon and sulfur, CS₂, a colourless liquid with a not-unpleasant smell; used as a specialist solvent, and in the manufacture of organosulfur compounds.