dynamo
noun/ˈdaɪnəməʊ/
/ˈdaɪnəməʊ/
(plural dynamos)
- a device for turning mechanical energy (= energy from movement) into electricity; a generatorTopics Engineeringc2
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- (informal) a person with a lot of energy
- the team’s midfield dynamo
- She's a human dynamo.
Word Originlate 19th cent.: abbreviation of dynamo-electric machine, from Greek dunamis ‘power’.
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dynamo