![oscillograph oscillograph](https://www.tekportal.net/wp-content/uploads/2018/11/oscillograph.jpg)
noun Electricity.
- a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
noun
- a device for producing a graphical record of the variation of an oscillating quantity, such as an electric current
n.
- An instrument that records oscillations, as of an electric current and voltage.