chronograph

UK /ˈkɹɒ.nə.ɡɹɑːf/ US /ˈkɹɑ.nəˌɡɹæf/
noun 3verb 1

Definitions

noun

1

A chronogram.

2

A device which marks or records time or time intervals.

3

A combination of a watch and a stopwatch.

Along this critical length Sir Nigel [Gresley], completely unmoved and in a very cheerful humour, came into my compartment and sat down next to me, with the immense chronograph in his hand that he had had made specially for speed recording; [...].

verb

1

To make an accurate measurement of the speed of a projectile.

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