naut mi

Noun (2)

1. a former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute mileSynonyms: nautical milenaut mimilemigeographical mileAdmiralty 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 latitudeSynonyms: nautical milemileminaut miknotinternational nautical mileair mile