chlorine

noun

chlo·​rine ˈklȯr-ˌēn How to pronounce chlorine (audio)
-ən
: 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 Then, there is an iron and manganese filter that uses ion exchange to catch unwanted particles and reduces chlorine. Andrea Wurzburger, Better Homes & Gardens, 22 Nov. 2023 This filter showerhead has been designed to help improve hair loss and reduce itching and dandruff by filtering up to 99.9% of rust and heavy metals and chlorine preventing your skin and hair from drying out. Claire Rutter, Rolling Stone, 9 Nov. 2023 Residents collect water at their community’s source and add pre-measured chlorine to reduce pathogens. Cameron Pugh, The Christian Science Monitor, 19 Sep. 2023 Thanks to this ingredient along with sodium thiosulfate, the shampoo is also a great option for dissolving chlorine left in hair from pool days. ELLE, 24 Aug. 2023 Waukesha has traditionally used chlorine to sanitize its groundwater supply. Jim Riccioli, Journal Sentinel, 21 Aug. 2023 Its multilayer filter uses natural coconut carbon to reduce chlorine and odors. Julie Laing, Verywell Health, 15 Aug. 2023 The amoeba is generally not found in splash pads or pools, which are usually treated with chlorine, which kills it. Cara Lynn Shultz, Peoplemag, 15 Sep. 2023 Ash and sediment can also react with chlorine, leading to health problems. Gwozniac, oregonlive, 8 Sep. 2023 See More

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

Word History

First Known Use

1810, in the meaning defined above

Time Traveler
The first known use of chlorine was in 1810

Dictionary Entries Near chlorine

Cite this Entry

“Chlorine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chlorine. Accessed 29 Nov. 2023.

Kids Definition

chlorine

noun
chlo·​rine ˈklō(ə)r-ˌēn How to pronounce chlorine (audio)
ˈklȯ(ə)r-,
-ən
: a nonmetallic element that is found alone as a heavy greenish yellow irritating gas having two atoms per molecule and a strong odor and that is used especially as a bleach, oxidizing agent, and disinfectant in water purification see element

Medical Definition

chlorine

noun
: 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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