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

 

the Admiralty

 noun
noun
BrE BrE//ˈædmərəlti//
 
; NAmE NAmE//ˈædmərəlti//
 
[singular + singular or plural verb] The navy
 
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(in Britain in the past) the government department controlling the navy See related entries: The navy Word Origin late Middle English: from Old French admiralte, from admirail ‘emir, leader’ via medieval Latin from Arabic 'amīr ‘commander’ (from 'amara ‘to command’).