chronometer
1 of 1noun/krəˈnɑmɪtər/
Forms:chronometers
1
a timepiece that shows the time in a very exact way, especially one used at sea
B2- The chronometer's accuracy was tested regularly to maintain its reliability for professional use.
- The navigator relied on a marine chronometer to determine the ship's longitude during the voyage.
- She used a high-quality chronometer to ensure accurate timing in her scientific experiments.
- The chronometer was essential for astronomers to track celestial events with precision.
- They calibrated the chronometer to ensure it met the strict standards for accuracy in their research.