chronograph UK /ˈkɹɒ.nə.ɡɹɑːf/US /ˈkɹɑ.nəˌɡɹæf/noun 3verb 1forms 3 noun3 •A device which marks or records time or time intervals. •A combination of a watch and a stopwatch. •(no longer used) A chronogram. verb1 •To make an accurate measurement of the speed of a projectile. formschronographed · chronographing · chronographs
