Definition of chronometer in English:



  • An instrument for measuring time accurately in spite of motion or variations in temperature, humidity, and air pressure.

    • ‘The process of mapping itself, now much more accurate thanks to Britain's invention of the chronometer for measuring longitude, allowed the British to perceive the globe as an integrated whole.’
    • ‘Preuss pocketed the chronometer and clutched his notebook.’
    • ‘And one might think initially they didn't do that because they didn't have the instruments, they didn't have the precise chronometers.’
    • ‘Using a digital chronometer, the time taken for an achene to fall 2 m in a tightly closed room was measured.’
    • ‘The museum currently has thirty-eight complete chronometers and twenty-three chronometer balances.’
    • ‘The English ruled the seas with their chronometers; now Americans rule the skies.’
    • ‘An expensive chronometer would help here, but one or more well-made hourglasses will also do just fine.’
    • ‘Cook kept the chronometers in locked wooden boxes and issued keys to the first lieutenant, the on-board astronomer, and himself.’
    • ‘Perhaps I'm more like a clockmaker opening the back casing to show students how all the cogs and wheels interact rather than assessing the chronometer's accuracy or appearance.’
    • ‘The most accurate chronometers could yield a position that was accurate only to within a few miles, but good enough for James Cook to accurately map the East Coast of Australia and allow the First Fleet to find Port Jackson again.’
    • ‘The time of science is a mathematical conception, symbolized as a unit of measure by clocks and chronometers.’
    • ‘Mercator invented such a marine chronometer, a pendulum clock, and on the strength of this invention he was elected a Fellow of the Royal Society in November 1666.’
    • ‘The author's discussion of how chronometers were employed for comparison of longitudes between ports is not entirely accurate and he appears not to fully understand the principles employed.’
    • ‘The expedition carried a chronometer for measuring longitude, although winding it each day at noon was a challenge.’
    • ‘Even chronometers, marine chronometers, the best of them, were good to maybe a 50th of a second or something of that order.’
    • ‘Reliable chronometers, first available on Cook's second voyage, allowed more reliable determination of longitude.’
    • ‘Although many chronometers were invented during the 18th century, none was widely successful until Maelzel introduced his metronome in 1815.’
    • ‘Here Maury's chronometrical sea science intimates the degree to which the chronometer had come, in the Victorian age, to embody nothing less than rationality itself.’
    • ‘All the while, though, they knew exactly where they stood in history: they were men of science, from Victorian England; they had set their chronometers at Greenwich, that towering hill.’
    • ‘Cook's first expedition in 1767 was to observe the transit of the planet Venus, and it was during his voyages - with the development of an accurate chronometer - that the measurement of longitude became an exact science.’
    timepiece, chronometer, small clock, timer