Instruments that measure electric current in amperes, often with a needle that moves across a dial or a digital display.
Compound of 'ampere' + 'meter' (from Greek 'metron' meaning 'measure'). The term emerged as electrical engineering developed in the late 1800s.
An ammeter (the shortened term) measures current the same way a car's fuel gauge measures gas—it shows you real-time data about what's happening right now in your circuit.
Complete word intelligence in one call. Free tier — 50 lookups/day.