English word pantochronometer comes from English chronometer (A device for measuring time, such as a watch or clock.), English panto- (All.)

Detailed word origin of pantochronometer

Dictionary entry	Language	Definition
chronometer	English (eng)	A device for measuring time, such as a watch or clock.
panto-	English (eng)	All.
pantochronometer	English (eng)	An instrument combining of compass, sundial, and universal sundial.

Words with the same origin as pantochronometer