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noun

magneto

mag-NEE-toh

Magneto (noun) means a small generator that uses a rotating magnet to produce electric current, used to fire the spark plugs in some small engines (still common on aircraft). Example: “The old tractor still starts on a magneto rather than a battery.”

noun
1
A small generator that uses a rotating magnet to produce electric current, used to fire the spark plugs in some small engines (still common on aircraft).
"The old tractor still starts on a magneto rather than a battery."
"Aircraft engines often carry two magnetos for redundancy in case one fails."

How to use magneto

Learner’s notes

In plain EnglishA small spinning magnet-generator that makes its own electricity to fire spark plugs, without needing a battery.

Common pairings
magneto ignition aircraft magneto

Word forms

magnetos plural

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Test yourself on “magneto” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

The old tractor still starts on a _____ rather than a battery.

Etymology

A shortening of "magneto-electric machine", the original 19th-century name for the device.

· First attested 1800

Class of 1800 magneto joined the language around 1800.
See the full Class of 1800 →
magnetoelectric machine

Rhymes for magneto

See all rhymes for magneto →

Frequently asked questions

What does “magneto” mean?

The word “magneto” means a small generator that uses a rotating magnet to produce electric current, used to fire the spark plugs in some small engines (still common on aircraft). In plain terms, a small spinning magnet-generator that makes its own electricity to fire spark plugs, without needing a battery.

How do you pronounce “magneto”?

“Magneto” is pronounced mag-NEE-toh (/maɡˈniːtəʊ/ in IPA).

How do you use “magneto” in a sentence?

Here is “magneto” used in a sentence: “The old tractor still starts on a magneto rather than a battery.”

What part of speech is “magneto”?

“Magneto” is a noun.

Where does the word “magneto” come from?

The word “magneto” dates back to around 1800. A shortening of "magneto-electric machine", the original 19th-century name for the device.

Definitions: FreeDict original editorial