[kruh-nom-i-ter] 
| 1. | 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. |
| 2. | any timepiece, esp. a wristwatch, designed for the highest accuracy. |
| chro·nom·e·ter (krə-nŏm'ĭ-tər) n. An exceptionally precise timepiece. chron'o·met'ric (krŏn'ə-mět'rĭk, krō'nə-), chron'o·met'ri·cal adj., chron'o·met'ri·cal·ly adv. |
| chronometer (krə-nŏm'ĭ-tər) Pronunciation Key
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. |
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