chlo·​ro·​prene ˈklȯr-ə-ˌprēn How to pronounce chloroprene (audio)
: a colorless liquid C4H5Cl used especially in making neoprene by polymerization

Examples of chloroprene in a Sentence

Recent Examples on the Web The rule targets ethylene oxide, used for sterilizing medical devices, and chloroprene, used to make rubber in footwear, plus four other chemicals. Peter Weber, theweek, 10 Apr. 2024 The rule also updates the standards for five other highly toxic chemicals: chloroprene, benzene, 1,3-butadiene, ethylene dichloride and vinyl chloride. Ava Kofman, ProPublica, 16 Apr. 2024 Ethylene oxide is used as a sterilizing agent for medical equipment and chloroprene is used to make synthetic rubber. USA TODAY, 10 Apr. 2024 The rule will significantly reduce emissions of chloroprene and other harmful pollutants at the Denka Performance Elastomer facility in LaPlace, Louisiana, the largest source of chloroprene emissions in the country, Regan said. Matthew Daly, Fortune, 9 Apr. 2024 The exception will be for companies that make neoprene, a manufacturing process which releases cancer-causing chloroprene. Brenda Goodman, CNN, 9 Apr. 2024 The plant, owned by Denka Performance Elastomer, already has chloroprene monitors at more than 20 locations along its perimeter. Lisa Song, ProPublica, 13 Apr. 2023 The proposal would slash ethylene oxide emissions nationwide by about two-thirds and chloroprene by three-quarters from 2020 levels, according to the agency. Michael Phillis, USA TODAY, 7 Apr. 2023 At a monitoring station near Fifth Ward Elementary, from February 2020 to February 2022, the average chloroprene concentration was 2.22 micrograms of chloroprene per cubic meter, which is more than 11 times the 0.2 upper limit of acceptability, the EPA letter said. Amanda Watts, CNN, 26 Oct. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'chloroprene.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


chlor- + isoprene

First Known Use

1931, in the meaning defined above

Time Traveler
The first known use of chloroprene was in 1931

Dictionary Entries Near chloroprene

Cite this Entry

“Chloroprene.” Dictionary, Merriam-Webster, Accessed 19 Jun. 2024.

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