chlo·rine
noun/ˈklɔːriːn/
/ˈklɔːriːn/
[uncountable] (symbol Cl)
- a chemical element. Chlorine is a poisonous green gas with a strong smell. It is often used in swimming pools to keep the water clean.
氯；氯气 Word Originearly 19th cent.: named by Sir Humphrey Davy, from Greek khlōros ‘green’ + -ine.