Dead Reckoning Definition

The finding of a ship's position by an estimate based on data recorded in the log, as speed and the time spent on a certain course, rather than by more precise means, as astronomical observations or Loran.
Webster's New World
Predictive calculation based on inference; guesswork.
American Heritage

Other Word Forms of Dead Reckoning


dead reckoning
dead reckonings

Origin of Dead Reckoning

  • Possibly alteration of ded. abbr. of deduced from deduce to trace from the beginning deduce

    From American Heritage Dictionary of the English Language, 5th Edition

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dead reckoning