chlo·​rine | \ ˈklȯr-ˌēn How to pronounce chlorine (audio) , -ən \

Definition of chlorine

: a halogen element that is isolated as a heavy greenish-yellow diatomic gas of pungent odor and is used especially as a bleach, oxidizing agent, and disinfectant in water purification — see Chemical Elements Table

Examples of chlorine in a Sentence

Recent Examples on the Web In addition to being classically stylish, these suits retain their shape, provide UV protection, and resist damage from chlorine and sunscreen. Travel + Leisure Staff, Travel + Leisure, "12 Black-owned Travel, Fashion, and Accessories Brands to Know and Support," 7 July 2020 The soft, quick-drying fabric features UPF 50, which will protect your skin from harmful UV rays, along with chlorine-resistant material that will prevent fading. Melissa Lee, USA TODAY, "Size-inclusive swimwear at Lands' End is up to 74% off right now," 26 June 2020 Constructed of sturdy metal, the showerhead has an internal water purifier that not only removes harmful chemicals such as chlorine but also rust, sand, and other sediments. Popular Science, "Showerhead upgrades that’ll turn your daily de-grime into a spa experience," 19 June 2020 Technicians are washing their gloved hands with a chlorine and water solution between each vehicle emissions test. Emilly Davis, azcentral, "Emissions testing required despite COVID-19 threat, even for older Arizonans," 11 June 2020 Making the semifinals were Baylor School (Tennessee), North Allegheny (Pennsylvania), Southlake Carroll (Texas) and the AquaBombers of St. Xavier who ripple through the chlorine at Keating Natatorium. Scott Springer,, "Minus pool, St. Xavier swimming still wins national titles," 13 June 2020 Transmission of the coronavirus in water is not a concern when adequate levels of chlorine or bromine are maintained in pools, according to state and federal guidelines. Nick Rahaim,, "Is it safe to stay in hotels during coronavirus?," 11 June 2020 Not enough chlorine sanitizer in three-compartment sink. Ebony Day, azcentral, "Expired hot dogs among citations in metro Phoenix restaurant inspections," 10 June 2020 There’s no evidence that the coronavirus can spread through the water, according to the U.S. Centers for Disease Control and Prevention; chlorine, bromine and other chemicals that are used to clean pools should render the virus inactive. Dallas News, "Is it safe to go to the pool or beach during the coronavirus outbreak?," 10 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chlorine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of chlorine

1810, in the meaning defined above

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Time Traveler for chlorine

Time Traveler

The first known use of chlorine was in 1810

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Statistics for chlorine

Last Updated

10 Jul 2020

Cite this Entry

“Chlorine.” Dictionary, Merriam-Webster, Accessed 11 Jul. 2020.

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More Definitions for chlorine


How to pronounce chlorine (audio)

English Language Learners Definition of chlorine

: a chemical that in its natural form is a greenish-yellow gas and has a strong smell


chlo·​rine | \ ˈklȯr-ˌēn How to pronounce chlorine (audio) , -ən \

Kids Definition of chlorine

: a chemical element that is a greenish yellow irritating gas of strong odor used as a bleach and as a disinfectant to purify water


chlo·​rine | \ ˈklō(ə)r-ˌēn, ˈklȯ(ə)r-, -ən How to pronounce chlorine (audio) \

Medical Definition of chlorine

: a halogen element that is isolated as a heavy greenish yellow gas of pungent odor and is used especially as a bleach, oxidizing agent, and disinfectant in water purification symbol Cl — see Chemical Elements Table

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More from Merriam-Webster on chlorine

Rhyming Dictionary: Words that rhyme with chlorine

Spanish Central: Translation of chlorine

Nglish: Translation of chlorine for Spanish Speakers

Britannica English: Translation of chlorine for Arabic Speakers Encyclopedia article about chlorine

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