English Explanatory Dictionary

dead reckoning

English dictionary entry

Meanings

noun
  1. 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. Compare with estimated position. Abbreviation: DR

Pronunciation

En-us-dead reckoning.oga

Word forms

dead reckoning dead reckonings ded reckoning

Etymology

Uncertain. Not short for deduced or deductive, but this belief explains the alternative spelling ded reckoning (which actually originated centuries later).

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