chronograph
Other forms: chronographs
A chronograph is a device for measuring time. But before you say "so, a clock?" be aware that it's a little bit more specific than that.
A chronograph is not just used to tell you what time it is; it's used to measure time with great precision. Think stopwatch, not grandfather clock. Chronographs are used in sports like racing, where a one-second time difference could be what decides whether you've won or lost. They're also useful in astronomy, where it's extremely important to record what time a particular observation occurs down to the last second.
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a device for recording time with great precisiontype of:timera timepiece that measures a time interval and signals its end
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Vocabulary lists containing chronograph
Take the time to learn these words that contain either the Latin root temp or the Greek root chron, both of which mean "time."
This vocabulary list features words with the Greek root chron meaning "time."