Meaning of Britannia

Bri•tan•ni•a

Pronunciation: (bri-tan'ē-u, -tan'yu), [key]
— n.
  1. the ancient Roman name of the island of Great Britain, esp. the S part where the early Roman provinces were.
  2. the British Empire.
    1. Great Britain.
    2. the United Kingdom of Great Britain and Ireland.
  3. the figure of a seated woman with trident and helmet used as a symbolic representation of Great Britain and the British Empire.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.