dynamo

3 definitions • 3 examples

a device that changes energy of movement into electrical energy:

A dynamo on a bicycle will power a pair of lights while the wheels are going around.

an energetic force:

human dynamo Onstage she is a human dynamo, spending the hour in perpetual motion.

a device that changes energy of movement into electrical energy:

fig. She’s a real dynamo (= energetic force).