| Chronometer 1. (n.) An instrument for measuring time; a timekeeper. 2. (n.) A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; -- intended to keep time with great accuracy for use an astronomical observations, in determining longitude, etc. 3. (n.) A metronome. Thesaurus Entries Big Ben, astronavigation, celestial navigation, clock, clock movement, clockworks, coastwise navigation, consolan, dead reckoning, fix, horologe, horologium, line of position, loran, pilotage, plane sailing, point-to-point navigation, radar, radio beacon, radio navigation, sextant, shoran, sofar, sonar, tables, ticker, timekeeper, timepiece, timer, turnip, watch, watchworks |