Definition

A device used to record and display the variations in electrical signals, such as voltage and current over time.

Example

The engineer used an oscillograph to analyze the electrical signals in the circuit.

Conversation

Have you heard about the new oscillograph they just released?

No, what does it do?

It's a device that records oscillations in electrical currents.

That sounds really useful for experiments!

Synonyms & Antonyms

Root Explanation

Oscillograph → It is formed from "oscillare" (meaning to swing or move back and forth) and "graph" (from Greek "grapho", meaning to write or record). The word describes a device that records the swinging or oscillating movements of a wave or signal.

Memory Tip

Imagine a device that 'writes' ('graph') the 'swinging' ('oscillare') movements of waves — that's what an oscillograph does.

Visually Confused Words