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: 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
The combination of bleach and vinegar results in a chemical reaction that creates toxic chlorine gas.
—Jolie Kerr, Better Homes & Gardens, 23 Oct. 2024
Use chlorine bleach, hot water, and a dry cloth or paper towel that has not been already used.
—Devonne Goode, Parents, 23 Oct. 2024
Most garments made of wool, silk, cashmere, mohair, leather, spandex, fleece, or microfiber should not be washed with chlorine bleach.
—Jolie Kerr, Better Homes & Gardens, 22 Oct. 2024
But 17,000 residents had to evacuate due to potentially harmful chlorine lingering in the air.
—Holly Yan, CNN, 22 Oct. 2024
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Word History
First Known Use
1810, in the meaning defined above
Phrases Containing chlorine
Dictionary Entries Near chlorine
Cite this Entry
“Chlorine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chlorine. Accessed 22 Nov. 2024.
Kids 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
More from Merriam-Webster on chlorine
Nglish: Translation of chlorine for Spanish Speakers
Britannica English: Translation of chlorine for Arabic Speakers
Britannica.com: Encyclopedia article about chlorine
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