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sym. the 1700s or 18th century.


C18 may refer to:

  • HMS C18, a submarine
  • Sauber C18, a Formula One racing car
  • Caldwell 18 ( NGC 185), a dwarf spheroidal galaxy of the Local Group in the constellation Cassiopeia
  • French Defence, Encyclopaedia of Chess Openings code

and also :

  • Combat 18, a British neo-Nazi organization
  • The 1938 Chrysler Royal C18
  • The C-18, a military cargo version of the Boeing C-137 Stratoliner
  • The 18th century (1701–1800 AD)
  • an octadecyl-type hydrocarbon with 18 carbon atoms, such as
  • IEC 60320 C18, a power connector
  • Malignant neoplasm of colon ICD-10 code