Origin of chronographchrono- + -graph
The definition of a chronograph is an instrument that measures intervals of time.
An example of a chronograph is a stopwatch which is used to measure how long an event lasts.
any of various instruments, as a stopwatch, for measuring and recording brief, precisely spaced intervals of time
An instrument that registers or graphically records time intervals such as the duration of an event.
From Ancient Greek χρονογράφος (khronographos, “chronicler”).
- The Number Of Revolutions And The Rise Of Temperature Were Recorded On A Chronograph Drum.
- Greater accuracy may be attained with a revolving-drum chronograph first devised by Thomas Young (Lett.
- From the so-called chronograph of the year 354 (Catalogue Liberianus) we learn that on the 13th of August, probably in 236, the bodies of the exiles were interred in Rome and that of Hippolytus in the cemetery on the Via Tiburtina.
- (Report on the Experiments made with the Bashforth Chronograph, &c., 1865-1870; Final Report, &c., 1878-1880; The Bashforth Chronograph, Cambridge, 1890).
- Abandoning therefore all a priori theoretical assumption, Bashforth set to work to measure experimentally the velocity of shot and the resistance of the air by means of equidistant electric screens furnished with vertical threads or wire, and by a chronograph which measured the instants of time at which the screens were cut by a shot flying nearly horizontally.