クロノメータークロノメーターFreq.FrequencyTop 100,000Meanings1nounchronometerA precision timepiece used especially in navigation and scientific contexts. The term is a direct loan from English and is used in technical or historical discussions.船ふねの航こう海かい士しはクロノメーターで正せい確かくな時じ刻こくを確かく認にんし