1) An accurate clock 2) Clock 3) Watch
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https://www.crosswordclues.com/clue/chronometer
1) Chrono 2) Clock 3) Timepiece 4) Timer
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https://www.crosswordclues.com/clue/chronometer
A timekeeper accurate enough to be used to determine longitude by means of celestial navigation.
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http://en.wikipedia.org/wiki/Glossary_of_nautical_terms
A timekeeper accurate enough to be used to determine longitude by means of celestial navigation.
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http://en.wikipedia.org/wiki/Glossary_of_nautical_terms
• (n.) A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; -- intended to keep time with great accuracy for use an astronomical observations, in determining longitude, etc. • (n.) A metronome. • (n.) An instrument for measuring time; a timekeeper.
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http://thinkexist.com/dictionary/meaning/chronometer/
Created by John Harrison, the father of modern navigation. The chronometer is a clock that is accurate enough to calculate the longitude of a ship's position. In 1763 he built such a clock and was later awarded a £20,000 prize for his invention.
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http://www.abc.se/~pa/uwa/glossary.htm
A portable timepiece of great accuracy. In Britain the term is used specifically for one with a detent escapement, and in Switzerland for one with a lever escapement, which meets an official rating of timekeeping. Chronometers were originally developed in the 18thC for use at sea so that a ship's longitudinal position could be calculated accuratel....
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http://www.antique-marks.com/antique-terms-c.html
portable timekeeping device of great accuracy, particularly one used for determining longitude at sea.[3 related articles]
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http://www.britannica.com/eb/a-z/c/81
A portable timekeeper designed for the purpose of finding a ship's longitude at sea â€` a task which calls for exceptional accuracy under widely varying climatic conditions.  Some authorities hold that only an instrument fitted with a detent escapement deserves to be called a chronometer;  others arg
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http://www.encyclo.co.uk/local/20450
A portable timepiece of great accuracy. In Britain the term is used specifically for one with a detent escapement, and in Switzerland for one with a lever escapement, which meets an official rating of timekeeping. Chronometers were originally developed in the 18thC for use at sea so that a ship's longitudinal position could be calculated accurately …...
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http://www.encyclo.co.uk/visitor-contributions.php
an extremely accurate clock that is relatively unaffected by movement or temperature changes
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http://www.encyclo.co.uk/visitor-contributions.php
Chro·nom'e·ter noun [ Greek ... time +
-meter : confer French
chronomètre .]
1. An instrument for measuring time; a timekeeper.
2. A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; -- intended to keep time with great accuracy fo...
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http://www.encyclo.co.uk/webster/C/75
A chronometer was any instrument that measures time, as a clock, watch, or dial; but, specifically, this term is applied to those time-keepers which were used for determining the longitude at sea, or for any other purpose where an accurate measure of time was required, with great portability in the instrument. The chronometer differed from the ordi...
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http://www.probertencyclopaedia.com/browse/AC.HTM
A watch that is certified to satisfy official standards of precision by having been set under various position and temperature conditions
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http://www.saffronart.com/sitepages/jewelry/glossary.aspx
[
n] - an accurate clock (especially used in navigation)
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http://www.webdictionary.co.uk/definition.php?query=chronometer
chronometer 1. In horlology, the time of day as indicated by a chronometer set to Greenwich Mean Time. 2. An instrument for measuring time; specifically applied to time-keepers adjusted to keep accurate time in all variations of temperature. 3. Chronometers are said to differ from watches by having a more perfect escapement and a compensation bala...
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http://www.wordinfo.info/words/index/info/view_unit/1302/9
noun an accurate clock (especially used in navigation)
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https://www.encyclo.co.uk/local/20974
Instrument for measuring time precisely, originally used at sea. It is designed to remain accurate through all conditions of temperature and pressure. The first accurate marine chronometer, capable of an accuracy of half a minute a year, was made in 1761 by John Harrison in England
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https://www.encyclo.co.uk/local/21221
a timepiece or timing device with a special mechanism for ensuring and adjusting its accuracy, for use in determining longitude at sea or for any purpose where very exact measurement of time is required. · any timepiece, esp. a wristwatch, designed for the highest accuracy.
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https://www.infoplease.com/dictionary/chronometer
an accurate clock (especially used in navigation)
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https://www.vocabulary.com/lists/1747955
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