1. carbon

noun. (ˈkɑːrbən) An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds.
Synonyms
char atomic number 6 smut coal C activated charcoal crude oil activated carbon radiocarbon diamond crude crock petroleum limestone rock oil soot oil lampblack charcoal black lead fossil oil fullerene graphite carbon 14 carbon black adamant wood coal chemical element element plumbago
Antonyms
trapezium decent conditional late skilled
Etymology
carbon (English)
carbo (Latin)
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2. carbon-14 dating

noun. A chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14; believed to be reliable up to 40,000 years.
Synonyms
geological dating radiocarbon dating carbon dating dating

3. carbon

noun. (ˈkɑːrbən) A thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper.
Synonyms
carbon paper paper
Antonyms
analyzed refined clean
Etymology
carbon (English)
carbo (Latin)

4. carbon

noun. (ˈkɑːrbən) A copy made with carbon paper.
Synonyms
copy carbon copy
Antonyms
disinfect outfield infield
Etymology
carbon (English)
carbo (Latin)
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