Word forms: (regular plural) cathode ray oscilloscopes
( Electrical engineering : Instrumentation, measuring, and testing , Instrument )
A cathode ray oscilloscope may be used to display the variations in voltage signals.
A cathode ray oscilloscope is a tool for measuring variations in current from a source.
A cathode ray oscilloscope is an instrument based upon the cathode ray tube, that provides a visible image of
one or more rapidly varying electrical quantities.
Collins English Dictionary. Copyright © HarperCollins Publishers