nautical mile definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
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
nautical mile definition by American Heritage Dictionary
noun Abbr. nmThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A unit of length used in sea and air navigation, based on the length of one minute of arc of a great circle, especially an international and U.S. unit equal to 1,852 meters (about 6,076 feet). Also called sea mile.
nautical mile - Science Definition
A unit of length in the US Customary System, used in air and sea navigation and equal to 6,076 feet or 2,025 yards (1,852 meters). Also called geographic mile. See Table at measurement.