chlorine

Meanings

1. 1
   noun

   the chemical element with atomic number 17, a toxic greenish-yellow halogen gas in its elemental form

   A sharp smell of chlorine lingered near the laboratory bench.

2. 2
   noun

   a chlorine-containing substance used to bleach materials or disinfect water

   The pool attendant tested the chlorine before allowing anyone into the water.

Common collocations

• chlorine dioxide Noun + noun

Coined by British chemist Humphry Davy in 1810 from Ancient Greek khlōros ("pale green, greenish yellow") + the chemical suffix -ine, after the element's characteristic color. Davy introduced the name while arguing that the gas was an element rather than an oxygen compound.

Topics

External links

• Cambridge Dictionary
• Wiktionary
• Google Images