volt
me
ter
Plural
voltmeters
1
a device used to measure the electric potential difference between two points in an electrical circuit
- A voltmeter indicated a low battery charge in the flashlight.
- The technician connected the voltmeter to the solar panel to measure its output.
- A voltmeter revealed a drop in voltage across the circuit due to a loose connection.
- The electrician used a voltmeter to check the voltage across the outlet.
- The researcher used a voltmeter to study the electrical activity of the brain.