naut mi

from WordNet (r) 3.0 (2006)
naut mi
    n 1: a former British unit of length equivalent to 6,080 feet
         (1,853.184 meters); 800 feet longer than a statute mile
         [syn: {nautical mile}, {naut mi}, {mile}, {mi},
         {geographical mile}, {Admiralty mile}]
    2: a unit of length used in navigation; exactly 1,852 meters;
       historically based on the distance spanned by one minute of
       arc in latitude [syn: {nautical mile}, {mile}, {mi}, {naut
       mi}, {knot}, {international nautical mile}, {air mile}]
    

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