chronometer/kɹəˈnɒm.ə.tə(ɹ)/EtymologyFrom chrono- + -meter, possibly after the model of earlier French chronomètre (“metronome”), ultimately from Ancient Greek χρόνος (khrónos, “time”) + μέτρον (métron, “meter, measuring device”).chronometer means A device for measuring time, particularly a precision mechanism for measuring time of day. Lexicurio rates it Sui generis — a strength score of 85 out of 100.nounA device for measuring time, particularly a precision mechanism for measuring time of day.“A wristwatch costs $20; a chronometer costs $20,000.”