'Britannic' definitions:

Definition of 'Britannic'

(from WordNet)
adjective
Of Britain; "Her Britannic Majesty"

Definition of 'Britannic'

From: GCIDE
  • Britannic \Bri*tan"nic\, a. [L. Britannicus, fr. Britannia Great Britain.] Of or pertaining to Great Britain; British; as, her Britannic Majesty. [1913 Webster] Brite