noun
- a machine that converts mechanical energy into electrical energy; a generator
- a person who is very energetic and gets things done
Usage: informal
Examples
- The old mill used a water wheel to power the dynamo.
- Engineers installed a new dynamo to generate electricity for the factory.
- The bicycle’s dynamo powered the front light as she pedaled.
- Sarah is a real dynamo who organized the entire charity event in two weeks.
- Our team captain is a dynamo on the field, always motivating everyone.
- The small dynamo produced enough current to charge the battery.
- He’s such a dynamo that he finished three projects before lunch.