- a timepiece or timing device with a special mechanism for ensuring and adjusting its accuracy, for use in determining longitude at sea or for any purpose where very exact measurement of time is required.
- any timepiece, especially a wristwatch, designed for the highest accuracy.
Origin of chronometer
Related Words for chronometricsequential, historical, classified, dated, ordered, progressive, temporal, sequent, chronographic, chronologic, chronometric, chronometrical, junctural, tabulated
Examples from the Web for chronometric
Historical Examples of chronometric
But it was their great astronomer, Ebn Junis, who accomplished the most valuable of all chronometric improvements.History of the Intellectual Development of Europe, Volume II (of 2)
John William Draper
The latitude, chronometric differences of longitude, and magnetic variation, were determined on shore at this southern point.
- a timepiece designed to be accurate in all conditions of temperature, pressure, etc, used esp at sea
- An extremely accurate clock or other timepiece. Chronometers are used in scientific experiments, navigation, and astronomical observations. It was the invention of a chronometer capable of being used aboard ship, in 1762, that allowed navigators for the first time to accurately determine their longitude at sea.