chlorine
/ˈklɔːrɪn/Definitions
1. noun
A greenish-yellow chemical element that is highly toxic in its free state, but is used as a disinfectant and a bleach.
“The public pool used chlorine to purify the water, making it safe for swimming.”
2. verb
To disinfect or purify with chlorine, typically used to treat water or surfaces.
“The water treatment plant chlorinated the water supply to eliminate bacteria.”