chlorine
chlorine
[ˈklɔːriːn]
noun
[ˈklɔːriːn]
noun
- the chemical element of atomic number 17, a toxic, irritant, pale green gas(Symbol: Cl)
氯（气）(符号: Cl) - A member of the halogen group, chlorine occurs in nature mainly as sodium chloride in seawater and salt deposits. The gas was used as a poison gas in the First World War. Chlorine is added to water supplies as a disinfectant
- early 19th cent.: named by Sir Humphrey Davy, from Greek khlōros 'green' + -ine
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