nautical mile Hear it!

nautical mile definition

nautical mile

any of various units of distance for sea and air navigation: in the U.S. since 1959, an international unit of length, equal to one minute of arc of a great circle of the earth or 6,076.12 feet or 1.1508 miles (1,852 meters or 1.852 kilometers): abbrev. NM

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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