Admiralty mile Admiralty mile /ˈædmərəlti maɪl/

noun

1. A former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute mile  ( Admiralty mile , geographical mile , mi , mile , naut mi , nautical mile )
   a former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute mile