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nautical mile

a unit of distance used chiefly in navigation, equal to 6080.20 feet (1853.25 meters) in the U.S., now replaced by the international nautical mile.
Also called geographical mile, sea mile.
Origin of nautical mile
First recorded in 1625-35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for nautical mile
Historical Examples
  • A nautical mile, or knot, you know, is between one and one-sixth and one and one-seventh land miles.

  • At this rate they would require one hundred and fifty-one days to travel a nautical mile.

    The Ocean and its Wonders R.M. Ballantyne
  • The nautical mile of 2029 yards has the honor of being the first standard based upon the dimensions of the globe.

    Inventors at Work George Iles
  • The drums used for reeling a multiple cable on, are capable of holding half a nautical mile in length.

  • In general practice the minute of latitude is taken as equal to the nautical mile.

    Nautical Charts G. R. Putnam
  • Only on the equator is a minute of longitude and a nautical mile of the same length.

    Lectures in Navigation Ernest Gallaudet Draper
  • Now you have already learned that a minute of latitude is always equal to a nautical mile.

    Lectures in Navigation Ernest Gallaudet Draper
British Dictionary definitions for nautical mile

nautical mile

Also called international nautical mile, air mile. a unit of length, used esp in navigation, equivalent to the average length of a minute of latitude, and corresponding to a latitude of 45°, i.e. 1852 m (6076.12 ft)
a former British unit of length equal to 1853.18 m (6080 ft), which was replaced by the international nautical mile in 1970 Former name geographical mile Compare sea mile
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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nautical mile in Science
nautical mile
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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