'Briticism' definitions:

Definition of 'Briticism'

(from WordNet)
noun
An expression that is used in Great Britain (especially as contrasted with American English) [syn: Anglicism, Briticism, Britishism]

Definition of 'Briticism'

From: GCIDE
  • Briticism \Brit"i*cism\, n. A word, phrase, or idiom peculiar to Great Britain; any manner of using a word or words that is peculiar to Great Britain. [1913 Webster]