1. an instrument for measuring electric current in amperes

Examples

• The electrician used an ammeter to check the current flowing through the circuit.
• Connect the ammeter in series with the load to measure the current accurately.
• The digital ammeter displayed a reading of 2.5 amperes.
• Before working on the electrical panel, he checked the ammeter readings.
• The laboratory ammeter can measure currents from microamperes to several amperes.
• She calibrated the ammeter before beginning the electrical measurements.