Meaning of “dynamo” in the English Dictionary

american-english dictionary

"dynamo" in British English

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dynamonoun

uk /ˈdaɪ.nə.məʊ/ us /ˈdaɪ.nə.moʊ/ plural dynamos

[ C ] 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.

[ C usually singular ] an energetic force:

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

(Definition of “dynamo” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"dynamo" in American English

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dynamonoun [ C ]

us /ˈdɑɪ·nəˌmoʊ/ plural dynamos

a device that changes energy of movement into electrical energy:

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

(Definition of “dynamo” from the Cambridge Academic Content Dictionary © Cambridge University Press)