The Collaborative International Dictionary
Microchronometer
Microchronometer \Mi`cro*chro*nom"e*ter\, n. A chronoscope.
Wiktionary
microchronometer
n. A chronoscope.
Usage examples of "microchronometer".
A maze of temporary wiring ran to Dr Hughes’s equipment — multibeam oscilloscopes, megawattmeters and microchronometers and the special relays that had been constructed to make the circuit at the calculated instant.