dynamo
Dynamo (noun) means a machine that converts mechanical motion into electrical current. Example: “The old bicycle had a dynamo that powered its front lamp.”
How to use dynamo
Learner’s notesIn plain EnglishA device that generates electricity from movement, or a tirelessly energetic person.
Word forms
- Plural
- dynamos
Fill the gap
Can you complete this real example?
The old bicycle had a _____ that powered its front lamp.
Etymology
A shortening of "dynamo-electric machine", built from the Greek root dúnamis, meaning power.