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English Words Starting With C

13,732 entries — pick a word to see its definition, pronunciation, and usage.

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

chloroacetic acid
nounLow
/ˌklɔːrəʊəˈsiːtɪk ˈæsɪd/A chlorinated derivative of acetic acid where one or more hydrogen atoms are replaced by chlorine.
chloroacetone
nounVery low
/ˌklɔːrəʊˈæsɪtəʊn/A chemical compound used as a lachrymatory agent, chemical intermediate, and former chemical warfare agent.
chloroacetophenone
nounC2
/ˌklɔːrəʊˌæsɪtəʊˈfiːnəʊn/A chemical compound derived from acetophenone with chlorine substitution, used in the manufacture of CS tear gas and some pharmaceuticals.
chloroargyrite
nounVery Rare
/ˌklɔːrəʊˈɑːdʒɪraɪt/A rare mineral consisting of silver chloride, with the chemical formula AgCl.
chlorobenzene
nounVery Low
/ˌklɔːrəʊˈbɛnziːn/An aromatic organic compound consisting of a benzene ring with a chlorine atom substituted for one hydrogen atom.
chlorobromide paper
nounVery Low
/ˌklɔːrəʊˈbrəʊmaɪd ˈpeɪpə/A specific type of photographic printing paper coated with a photographic emulsion containing a mixture of silver chloride and silver bromide salts.
chlorobromomethane
nounVery Low (C2+ Specialised)
/ˌklɔːrəʊˌbrəʊməʊˈmiːθeɪn/A specific chemical compound consisting of methane (CH4) in which one hydrogen atom is replaced by chlorine and another by bromine, resulting in the molecular formula CH2ClBr.
chlorocarbon
nounLow
/ˌklɔːrə(ʊ)ˈkɑːbən/A chemical compound containing both chlorine and carbon atoms.
chloroethane
nounVery Low (Technical/Low Frequency)
/ˌklɒr.əʊˈiː.θeɪn/A simple organic compound (C₂H₅Cl), consisting of ethane where one hydrogen atom has been replaced by a chlorine atom.
chloroethene
nounC2
/ˌklɒrəʊˈiːθiːn/A toxic, flammable gas, chemical formula C₂H₃Cl, used primarily as a precursor in the industrial manufacture of the polymer polyvinyl chloride (PVC).
chlorofluorocarbon
nounC1/C2
/ˌklɔːrəʊˌflʊərəʊˈkɑːb(ə)n/Any of several chemical compounds consisting of carbon, chlorine, and fluorine, formerly used as refrigerants and aerosol propellants, now regulated due to their harmful effect on the ozone layer.
chlorofluoromethane
nounC2
/ˌklɔːrəʊˌflʊərəʊˈmiːθeɪn/A specific chemical compound (CH2ClF) consisting of methane where hydrogen atoms are replaced by chlorine and fluorine atoms.
chloroform
nounverb-transitiveC1
/ˈklɒrəfɔːm/A colourless, volatile, sweet-smelling liquid, chemical formula CHCl₃, used primarily as an anaesthetic agent, especially historically.
chloroformyl chloride
nounC2 (Very Low Frequency)
/ˌklɔːrə(ʊ)ˈfɔːmɪl ˈklɔːraɪd/A chemical compound with the formula COCl₂, also known as phosgene; a colourless, highly toxic gas used as a chemical weapon and industrial reagent.
chlorogenic acid
nounLow
/ˌklɔː.rəʊˈdʒen.ɪk ˈæs.ɪd/A type of polyphenol antioxidant compound found in various plants, particularly coffee beans.
chlorohydrin
nounC2 (Highly Specialized)
/ˌklɔːrəʊˈhaɪdrɪn/A chemical compound containing a chlorine atom and a hydroxyl group (-OH) bonded to adjacent carbon atoms.
chlorohydroquinone
nounVery Low
/ˌklɔːrəʊˌhaɪdrəʊˈkwɪnəʊn/A chlorinated derivative of hydroquinone, used as an intermediate in chemical synthesis.
chloromethane
nounVery Low
/ˌklɔːrəʊˈmiːθeɪn/A chemical compound, specifically an organohalogen, consisting of a methane molecule where one hydrogen atom is replaced by a chlorine atom. Its chemical formula is CH₃Cl.
chloromycetin
nounRare
/ˌklɔː.rəʊ.maɪˈsiː.tɪn/A brand name for the antibiotic chloramphenicol, used to treat serious bacterial infections.
chloronaphthalene
nounExtremely Low
/ˌklɔːrəʊˈnæfθəliːn/A chemical compound derived from naphthalene by the substitution of one or more hydrogen atoms with chlorine atoms.

Showing 5181–5200 of 13732 words.