ded reckoning

A form of dead reckoning — A method of estimating the position of a ship or aircraft by applying estimates of the distance and direction travelled from a previously known position. In respect to ships/boats, it excludes the effect of wind and current on the vessel.

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Meanings

nounded reckoning (countable and uncountable, plural ded reckonings)

plural ded reckonings

  1. alternativecountableuncountableAlternative form of dead reckoning.

Origin

From the mistaken idea that the dead in dead reckoning originated as an abbreviation of deduced or deductive.

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Cite this entry
APA

ded reckoning. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/ded%20reckoning

MLA

“ded reckoning.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ded%20reckoning. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “ded reckoning,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/ded%20reckoning.

Source: ded reckoning on Wiktionary, CC BY-SA 4.0.