- 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)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for loran
It had been mentioned last night—a loran fix on the Esperance's position.Creatures of the Abyss
After trying for years to simplify the code, the council members called in Loran Krovalo to fill a vacancy and take over the job.
This couple, like Jarro Kogar and his wife, were childless and when they both died, Loran and his wife were very grieved.
Loran left the center and moved to another city where he found a galactic couple who wanted a slave.
Loran was known and liked by galactic and slave alike for his brilliant essays on the master-slave relationship.
- 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
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
Word Origin and History for loran
1940, a word invented from initial letters in long-range navigation.
Online Etymology Dictionary, © 2010 Douglas Harper
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.