dead reckoning


Definition of dead reckoning

1 : the determination without the aid of celestial observations of the position of a ship or aircraft from the record of the courses sailed or flown, the distance made, and the known or estimated drift
2 : guesswork

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Other Words from dead reckoning

dead reckon verb

Examples of dead reckoning in a Sentence

Recent Examples on the Web But for longitude, navigators had to rely on dead reckoning that was subject to errors. Tim Bajarin, Forbes, 28 Apr. 2021 The researchers modeled the animals’ behavior using a variety of math ideas and the navigational concept of dead reckoning. Caroline Delbert, Popular Mechanics, 19 Mar. 2021 Yoni Nova Kusumawan, had to rely on dead reckoning—using the STS-50’s trackline and rate of speed to estimate where and when to intercept it. Tristram Korten, Smithsonian Magazine, 21 Aug. 2020 But since all of these systems all used dead reckoning—which, again, compares a car’s location to that of a map—these solutions weren’t actually that much more advanced than the 1909 Jones Live-Map. Larry Printz, Ars Technica, 24 June 2020 Known as dead reckoning, the system didn't use satellites. Larry Printz, Ars Technica, 24 June 2020 Developed in California by Stan Honey and Atari founder Nolan Bushnell, this aftermarket automotive navigation system also operated on dead reckoning by comparing a car’s location to points on a map. Larry Printz, Ars Technica, 24 June 2020 In 1995, the 174m Panamanian cruise ship Royal Majesty had a mechanical failure that forced its navigation system to switch from GPS to dead reckoning. Jim Salter, Ars Technica, 22 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dead reckoning.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of dead reckoning

1613, in the meaning defined at sense 1

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Time Traveler for dead reckoning

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The first known use of dead reckoning was in 1613

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Dictionary Entries Near dead reckoning

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dead reckoning

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Cite this Entry

“Dead reckoning.” Dictionary, Merriam-Webster, Accessed 17 Oct. 2021.

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