Oscilloscope (noun)

1. An electronic instrument used to display and analyze electrical signals.
2. A device that shows a graph of an alternating electrical quantity versus time.

Origin:

From the adjective 'oscillatory' meaning 'having a periodic, swinging motion', which is derived from the latin verb 'oscillare' meaning 'to swing', which is derived from the noun 'oscillum' meaning 'a swing'. it was first used in the early 20th century.

Examples:

1. An oscilloscope is a valuable tool for troubleshooting electronic circuits.
2. The engineer used an oscilloscope to measure the frequency of the waveform.
3. The oscilloscope display showed a clear pattern of voltage spikes.
4. An oscilloscope is commonly used in physics, engineering and electronics labs.
5. The oscilloscope data revealed that the circuit was oscillating at the expected frequency.