nautical mile

noun

Definition of nautical mile

:any of various units of distance used for sea and air navigation based on the length of a minute of arc of a great circle of the earth and differing because the earth is not a perfect sphere: such as
a :a British unit equal to 6080 feet (1853.2 meters)
b :an international unit equal to exactly 1852 meters (6076.115 feet or 1.15 statute miles) used officially in the U.S. since July 1, 1954

Recent Examples of nautical mile from the Web

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First Known Use of nautical mile

1830


NAUTICAL MILE Defined for English Language Learners

nautical mile

noun

Definition of nautical mile for English Language Learners

  • : a unit of distance equal to 1,852 meters or 1.15 miles that is used for sea and air travel


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