chronometers

noun
UK /krəˈnɒm.ɪ.təz/
US /krəˈnɑː.mə.t̬ɚz/

Chronometers are very exact clocks that keep time really well.

The sailors used chronometers to know exactly what time it was at sea.

SYNONYMS

timepiecesclockswatchestimers

RELATED WORDS

navigationsailorsprecisiontimekeepinginstruments

OTHER MEANINGS

2. Special clocks used on ships to help find the ship's position.

The captain checked the chronometers before setting the course.

3. Any instrument that measures time very accurately.

Scientists rely on chronometers for their experiments.

4. Devices that keep steady time over long journeys.

The explorers packed chronometers for their long trip.