|  synchroscope 
 
 an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)
 • Syn:
 synchronoscope, synchronizer, synchroniser
 • Derivationally related forms:
 synchronize (for: synchronizer), synchronise (for: synchroniser)
 • Hypernyms:
 measuring instrument, measuring system, measuring device
 
 
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