dynamo

noun dy·na·mo \ ˈdī-nə-ˌmō \
Updated on: 8 Nov 2017

Definition of dynamo

plural dynamos
1 :generator 1b
2 :a forceful energetic individual

Examples of dynamo in a Sentence

  1. a dynamo who barely needs to sleep, or so it seems

Recent Examples of dynamo from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dynamo.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

The dynamo was introduced in 1832 to produce electricity for commercial use. Like all later generators, the original dynamos changed mechanical energy (produced by steam, which was itself produced by burning coal) into electricity. The word is less used today than it once was, since it's often applied only to generators that produced direct electric current (DC) rather than alternating current (AC), which is now the standard. A human dynamo is a person who seems to have unlimited energy, such as New York's legendary mayor Fiorello La Guardia, whose forcefulness and vigor matched that of his intensely dynamic city.

Origin and Etymology of dynamo

short for dynamoelectric machine


DYNAMO Defined for English Language Learners

dynamo

noun

Definition of dynamo for English Language Learners

  • : a machine that produces electricity

  • : someone who has a lot of energy


DYNAMO Defined for Kids

dynamo

noun dy·na·mo \ ˈdī-nə-ˌmō \

Definition of dynamo for Students

plural dynamos
2 :an energetic person


Seen and Heard

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