dead reckoning

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Related to Ded reckoning: Dead-reckoning, Deduced Reckoning

dead reckoning

n.
1. A method of estimating the position of a vehicle such as an aircraft or a ship based on its previous position and its course and speed over a known interval of time.
2. Predictive calculation based on inference; guesswork.

[Possibly alteration of ded., abbr. of deduced, from deduce, to trace from the beginning; see deduce.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

dead reckoning

n
(Navigation) a method of establishing one's position using the distance and direction travelled rather than astronomical observations
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

dead′ reck′oning


n.
Navig. calculation of one's position on the basis of compass readings, speed, and distance run from a known point, with allowances for drift from wind, currents, etc.
[1605–15]
dead′-reck′on, v.t.
dead′-reck′on•er, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

dead reckoning

- A calculation based on guesswork.
See also related terms for reckoning.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dead reckoning - an estimate based on little or no informationdead reckoning - an estimate based on little or no information
approximation, estimate, estimation, idea - an approximate calculation of quantity or degree or worth; "an estimate of what it would cost"; "a rough idea how long it would take"
2.dead reckoning - navigation without the aid of celestial observations
navigation, pilotage, piloting - the guidance of ships or airplanes from place to place
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The term "ded reckoning" is a product of amateur etymologists in the last 50 years who basically made up a story to fit their conjecture.