: 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 study scientists believe that when the sunlight hit the mixture, chlorine formed and broke down some of the methane produced by the eruption.
—
Laura Paddison, CNN Money, 30 May 2026
After all, between gritty sand, tough chlorine, and more hands-on activities, your nails are going through a lot that regular polish usually can’t withstand—that’s where dip powder comes in.
—Ariel Wodarcyk, InStyle, 29 May 2026
Ebola response interventions include installing handwashing units in health facilities, schools and critical transit sites and distributing thermometers, chlorine and other supplies to treat water.
—Maryanne Murray Buechner, Forbes.com, 28 May 2026
Early in his life, Harambe experienced heartbreak when, at 2 years old, his mom, Kayla, 11-month-old brother, Makoko and sister Uzuri, 2½, died due to a chlorine gas poisoning accident at the Texas Zoo.
—Angela Andaloro, PEOPLE, 28 May 2026
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Laura Paddison, CNN Money, 30 May 2026
After all, between gritty sand, tough chlorine, and more hands-on activities, your nails are going through a lot that regular polish usually can’t withstand—that’s where dip powder comes in.
—Ariel Wodarcyk, InStyle, 29 May 2026
Ebola response interventions include installing handwashing units in health facilities, schools and critical transit sites and distributing thermometers, chlorine and other supplies to treat water.
—Maryanne Murray Buechner, Forbes.com, 28 May 2026
Early in his life, Harambe experienced heartbreak when, at 2 years old, his mom, Kayla, 11-month-old brother, Makoko and sister Uzuri, 2½, died due to a chlorine gas poisoning accident at the Texas Zoo.
—Angela Andaloro, PEOPLE, 28 May 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 2 Jun. 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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