chronometer

• Instrument de mesure du temps de haute précision, utilisé notamment en navigation maritime pour déterminer la longitude ou pour des mesures scientifiques exactes.

A highly accurate timekeeping device, especially one used in navigation to determine longitude or for precise scientific measurements.

1. Precision timekeeping instrumentC1formal

   An exceptionally accurate timepiece, especially used for navigation at sea to determine longitude.

   Chronomètre de marine

   • The captain relied on the chronometer to calculate the ship's position.
   • Marine chronometers are designed to withstand the motion of a ship.
   • He carefully wound the chronometer every day to ensure its accuracy.

   Synonymesclocktimekeepertimepiecewatch