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noun

ammeter

AM-mi-tur
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Ammeter (noun) means a device that measures the size of an electric current, usually calibrated in amperes. Example: “The electrician clipped an ammeter onto the circuit to check the current.”

noun
1
A device that measures the size of an electric current, usually calibrated in amperes.
"The electrician clipped an ammeter onto the circuit to check the current."
"Readings on the ammeter jumped as soon as the motor started."

How to use ammeter

Learner’s notes

In plain EnglishAn ammeter is simply the tool you use to read how much electric current is flowing.

When to use it

This is a standard technical term used in electronics and electrical work rather than everyday speech.

Memory tip

Keep ammeter and voltmeter apart by remembering ammeter measures amperes, or current, while voltmeter measures voltage.

Trace the full origin ↓
Easily confused with
voltmeter
Common pairings
clip-on ammeter digital ammeter ammeter reading connect an ammeter
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The electrician clipped an _____ onto the circuit to check the current.

Etymology

Ammeter is formed from ampere combined with the suffix -meter, naming a device for measuring current in amperes.

Origin: English

amperemeter amperimeter amperometer

Rhymes for ammeter

See all rhymes for ammeter →

Frequently asked questions

What does an ammeter do?
It measures the size of an electric current flowing through a circuit, typically giving a reading in amperes.
How is an ammeter connected in a circuit?
It is wired into the circuit so the current being measured passes through it.
Where does the word ammeter come from?
It combines ampere, the unit of electric current, with the suffix -meter, meaning a measuring device.
What is the meaning of ammeter?
"ammeter" (noun) means a device that measures the size of an electric current, usually calibrated in amperes.