Definition of Britannia noun from the Oxford Advanced Learner's Dictionary

 

Britannia

 noun
noun
BrE BrE//brɪˈtaniə//
 
; NAmE NAmE//brɪˈtaniə//
 
[singular]
 
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a figure of a woman used as a symbol of Britain. She is usually shown sitting down wearing a helmet and holding a shield and a trident (= a long weapon with three points). Word Originthe Latin name for Britain.