any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter

any chemical element that belongs to the carbon group.

fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period

a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals

a dark oil consisting mainly of hydrocarbons

a form of carbon having a large molecule consisting of an empty cage of sixty or more carbon atoms

a radioactive isotope of carbon

a charred substance

a carbonaceous material obtained by heating wood or other organic matter in the absence of air

a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink

fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period

a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals

a dark oil consisting mainly of hydrocarbons

an extremely hard boron–carbon ceramic material used in tank armor, bulletproof vests, engine sabotage powders, as well as numerous industrial applications.

an inorganic compound with the formula NCCl.