Cl

Multiple Entries:
  Cl    CL    cl    centilitre    chlorine  

Concise Oxford English Dictionary © 2008 Oxford University Press:
Cl

▶symbol the chemical element chlorine.

Concise Oxford English Dictionary © 2008 Oxford University Press:
CL

▶abbreviation

• 1 chemiluminescence.

• 2 Sri Lanka (international vehicle registration). [from Ceylon (former name for Sri Lanka).]

Concise Oxford English Dictionary © 2008 Oxford University Press:
cl

▶abbreviation centilitre.

Concise Oxford English Dictionary © 2008 Oxford University Press:
centilitre /ˈsentɪliːtə(r)/ (US centiliter) (abbrev.: cl)

▶noun a metric unit of capacity equal to one hundredth of a litre.

Concise Oxford English Dictionary © 2008 Oxford University Press:
chlorine /ˈklɔːriːn/

▶noun the chemical element of atomic number 17, a toxic, irritant, pale green gas of the halogen group. (Symbol: Cl)

– origin C19: from Gk khlōros ‘green’ + -ine4.