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English Words Starting With C

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

carbon 12
nounC2
/ˌkɑː.bən ˈtwɛlv/The most abundant, stable isotope of carbon, having 6 protons and 6 neutrons, and serving as the standard for atomic mass measurements.
carbon 13
nounC1
/ˌkɑː.bən θɜːˈtiːn/A stable, naturally occurring isotope of carbon, containing 6 protons and 7 neutrons.
carbon 14
nounLow
/ˌkɑː.bən ˈfɔː.tiːn/A radioactive isotope of carbon with an atomic mass of 14, used in radiocarbon dating to determine the age of organic materials.
carbon 14 dating
nounC1
/ˌkɑː.bən ˌfɔː.tiːn ˈdeɪ.tɪŋ/A scientific method for determining the age of organic materials by measuring the decay of the radioactive isotope carbon-14.
carbon arc
nounC2/Very low
/ˈkɑːbən ɑːk/An intense, bright light source created by passing an electric current between two carbon rods, generating a high-temperature luminous arc.
carbon bisulphide
nounVery Low
/ˌkɑː.bən baɪˈsʌl.faɪd/A chemical compound with the formula CS₂, consisting of carbon bonded to two sulfur atoms.
carbon black
nounC1
/ˌkɑː.bən ˈblæk/A fine black powder consisting of elemental carbon, produced by the incomplete combustion of hydrocarbons such as oil or gas.
carbon brush
nounC1
/ˈkɑː.bən ˌbrʌʃ/A small block of carbon used to conduct electrical current between a stationary wire and a moving part, such as in a motor or generator.
carbon capture
nounLow-Mid (Specialised/Technical)
/ˈkɑː.bən ˈkæp.tʃər/The process of capturing carbon dioxide (CO₂) produced by industrial processes or power generation before it enters the atmosphere.
carbon copy
nounB2
/ˌkɑː.bən ˈkɒp.i/An exact duplicate; a replica.
carbon credit
nounC1
/ˈkɑː.bən ˌkred.ɪt/A tradable certificate or permit representing the right to emit one tonne of carbon dioxide or an equivalent amount of another greenhouse gas.
carbon cycle
nounC1
/ˈkɑː.bən ˌsaɪ.kəl/The natural process through which carbon atoms move between Earth's atmosphere, oceans, soil, rocks, and living organisms.
carbon dating
nounB2
/ˌkɑː.bən ˈdeɪ.tɪŋ/A scientific method for determining the approximate age of organic materials by measuring the decay of radioactive carbon-14 isotopes.
carbon dioxide
nounC1
/ˌkɑːbən daɪˈɒksaɪd/A colourless, odourless gas produced by burning carbon and organic compounds and by respiration. It is absorbed by plants in photosynthesis.
carbon dioxide snow
nounLow
/ˌkɑː.bən dʌɪˈɒk.saɪd snəʊ/Solid carbon dioxide (CO₂) formed at very low temperatures, appearing as a white, frost-like substance.
carbon disulfide
nounLow
/ˌkɑː.bən daɪˈsʌl.faɪd/A colorless, volatile, flammable liquid chemical compound with the formula CS₂, consisting of carbon and sulfur.
carbon disulphide
nounLow/Technical
/ˌkɑː.bən daɪˈsʌl.faɪd/A flammable, toxic, colourless chemical compound composed of carbon and sulfur (CS₂), often used as an industrial solvent.
carbon fiber
nounC1
/ˌkɑː.bən ˈfaɪ.bər/A strong, lightweight material consisting of thin strands of carbon atoms bonded together in crystals aligned along the fiber's long axis.
carbon fibre
nounB2
/ˈkɑː.bən ˌfaɪ.bər/An extremely strong, lightweight material consisting of thin, tightly interwoven carbon filaments, used in advanced manufacturing.
carbon fixation
nounLow (Highly specialized term)
/ˈkɑː.bən fɪkˈseɪ.ʃən/The biochemical process by which atmospheric carbon dioxide is converted into organic compounds by living organisms, primarily through photosynthesis.

Showing 1601–1620 of 13732 words.