: 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
Radical transparency means admitting mistakes Armedangels prides itself on using only chlorine-free wool from certified organic farms.
—
Jasmin Malik Chua, Sourcing Journal, 13 Feb. 2026
Health inspectors found containers of chlorine stored over a bag of onions.
—Veronica Fernandez-Alvarado
february 13, Sacbee.com, 13 Feb. 2026
Each swimsuit style is breathable, chlorine-resistant for durability and provides UPF 50-plus sun protection.
—Lisa Lockwood, Footwear News, 11 Feb. 2026
The Centers of Disease Control and Prevention reports that exposure to chlorine, a flame retardant, at 60 micrograms per gram for 60 minutes or more through inhalation can lead to lung irritation and impaired function.
—Aude Konan, Scientific American, 11 Feb. 2026
See All Example Sentences for chlorine
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Jasmin Malik Chua, Sourcing Journal, 13 Feb. 2026
Health inspectors found containers of chlorine stored over a bag of onions.
—Veronica Fernandez-Alvarado
february 13, Sacbee.com, 13 Feb. 2026
Each swimsuit style is breathable, chlorine-resistant for durability and provides UPF 50-plus sun protection.
—Lisa Lockwood, Footwear News, 11 Feb. 2026
The Centers of Disease Control and Prevention reports that exposure to chlorine, a flame retardant, at 60 micrograms per gram for 60 minutes or more through inhalation can lead to lung irritation and impaired function.
—Aude Konan, Scientific American, 11 Feb. 2026
See All Example Sentences for chlorine
Cite this Entry
“Chlorine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chlorine. Accessed 16 Feb. 2026.
Copy CitationKids Definition
chlorine
noun
chlo·rine
ˈklō(ə)r-ˌēn 
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
chlo·rine
ˈklō(ə)r-ˌēn, ˈklȯ(ə)r-, -ən
: 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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