a timepiece fitted with a recording device, as a stylus and rotating drum, used to mark the exact instant of an occurrence, especially in astronomy.
a timepiece capable of measuring extremely brief intervals of time accurately, as a stopwatch able to record fractions of a second as well as elapsed time.
verb (used with object)
to time by means of a chronograph.
Origin of chronograph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an accurate instrument for recording small intervals of time
any timepiece, esp a wristwatch designed for maximum accuracy
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