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or Loran

[lawr-an, lohr-] /ˈlɔr æn, ˈloʊr-/
a system of long-range navigation whereby the latitude and longitude of a ship or airplane are determined from the time displacement between radio signals from two or more fixed transmitters.
Origin of loran
1940-45, Americanism; lo(ng) ra(nge) n(avigation) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for loran
Historical Examples
  • It had been mentioned last night—a loran fix on the Esperance's position.

    Creatures of the Abyss Murray Leinster
  • loran left the center and moved to another city where he found a galactic couple who wanted a slave.

    The Ethical Way Joseph Farrell
  • This couple, like Jarro Kogar and his wife, were childless and when they both died, loran and his wife were very grieved.

    The Ethical Way Joseph Farrell
  • After trying for years to simplify the code, the council members called in loran Krovalo to fill a vacancy and take over the job.

    The Ethical Way Joseph Farrell
  • loran was known and liked by galactic and slave alike for his brilliant essays on the master-slave relationship.

    The Ethical Way Joseph Farrell
British Dictionary definitions for loran


a radio navigation system operating over long distances. Synchronized pulses are transmitted from widely spaced radio stations to aircraft or shipping, the time of arrival of the pulses being used to determine position
Word Origin
C20: lo(ng-)ra(nge) n(avigation)
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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Word Origin and History for loran

1940, a word invented from initial letters in long-range navigation.

Online Etymology Dictionary, © 2010 Douglas Harper
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loran in Science
A long-range navigational system, in which a receiver's position is determined by an analysis involving the time intervals between pulsed radio signals from two or more pairs of ground stations of known position. The difference in the timing of the received signals corresponds to differences in distance from the transmitters, and the position of the receiver can be calculated by triangulation. Compare Global Positioning System.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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