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| carbon 14 |
a radioactive isotope of carbon that has a half-life of about 5,700 years and whose presence in rock, fossils, and other archaeological specimens enables them to be dated. |
| carbonaceous |
of, like, containing, or yielding carbon. |
| carbonate |
to infuse or charge with carbon dioxide, as soft drinks or soda water. [1/3 definitions] |
| carbonated |
of or pertaining to water infused with carbon dioxide gas (used esp. in reference to carbonated beverages). |
| carbonation |
infusion of water with carbon dioxide gas. |
| carbon black |
any of various finely divided forms of carbon obtained from the incomplete burning of natural gas or petroleum oil, and used to make ink, pigments, and rubber, and as a filtering agent. |
| carbon copy |
a copy of a document, letter, or the like that is made by using carbon paper. [1/2 definitions] |
| carbon-date |
to determine the approximate age of (materials containing carbon, such as fossils) according to the residue of carbon 14 that is present. |
| carbon dating |
a way of approximating the age of an archaeological object by measuring the amount of carbon 14 in it. |
| carbon footprint |
the total amount of carbon dioxide and other greenhouse gases produced by a single person, organization, product, or process. |
| carbonic |
of, containing, or derived from carbon with a valence of four. |
| carbonic acid |
a weak colorless unstable acid, present only in solution, formed by dissolving carbon dioxide in water. |
| carboniferous |
containing, yielding, or pertaining to carbon or coal. [1/3 definitions] |
| carbonize |
to reduce or change into carbon; char. [2 definitions] |
| carbonless |
combined form of carbon. |
| carbon monoxide |
a colorless, odorless, combustible, and very poisonous gas, produced by the incomplete combustion of material containing carbon, such as gasoline, because of insufficient air. |
| carbon-neutral |
of or pertaining to a state in which no net carbon dioxide is added to the atmosphere. |
| carbon paper |
very thin paper coated on one side with carbon or a dark waxy pigment, that is placed between two sheets of paper and produces a copy on the lower sheet of text that is written or typed on the upper. |
| carbonyl |
a metal compound containing a radical of one atom of carbon and one of oxygen, or this radical itself. |
| carboxyl |
a chemical group containing one atom of carbon, two of oxygen, and one of hydrogen, present in many organic acids. |
| caseharden |
to form a hard thin surface on (an alloy of iron) by bonding with carbon under heat. [1/2 definitions] |
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