magneto
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.”
How to use magneto
Learner’s notesIn plain EnglishA small spinning magnet-generator that makes its own electricity to fire spark plugs, without needing a battery.
Word forms
- Plural
- magnetos
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.