chlorine
UK /ˈklɔːɹiːn/ · US /ˈklɔɹin/ noun
Forms chlorines chlorin
- noun A toxic, green, gaseous chemical element (symbol Cl) with an atomic number of 17.
- noun (countable) A single atom of this element.
- noun (countable) A chlorine-based bleach or disinfectant.
Synonyms
Etymology
Coined by British chemist Humphry Davy in 1810 from Ancient Greek χλωρός (khlōrós, “pale green”) + -ine.
Webster’s 1913
- noun One of the elementary substances, commonly isolated as a greenish yellow gas, two and one half times as heavy as air, of an intensely disagreeable suffocating odor, and exceedingly poisonous.
Etymology [Gr. Yellow.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “chlorine”, CC BY-SA 4.0. Details