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The dynamo was introduced in 1867 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.
Examples of dynamo in a Sentence
Shi En Kim, Smithsonian Magazine, 22 May 2024
And for the production currently at the Savoy, high-school dynamo Mariam Faal plays the Debater.
—Lisa Kennedy, The Denver Post, 9 Feb. 2024
See all Example Sentences for dynamo 
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dynamo.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Dynamo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dynamo. Accessed 1 Jun. 2024.
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