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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
a dynamo who barely needs to sleep, or so it seems
Recent Examples on the Web
Enter the dynamo Frances Belle Wolodsky, known to all as Wally (Kaitlyn Davidson, giving the show’s only performance that communicates a capacity for wit, timing, and restraint).
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Sara Holdren, Vulture, 11 July 2024
Also stunning the audience were performances from sibling duo Larkin Poe, Red Dirt country-rockers Turnpike Troubadours, and the octave-scaling, peerless vocal dynamo The War and Treaty (who drew an instant, rowdy standing ovation).
—Jessica Nicholson, Billboard, 19 Sep. 2024
Managing For The Long Term Even since On Holding stepped into the public market in September 2021, it’s been a growth dynamo.
—Pamela N. Danziger, Forbes, 8 Sep. 2024
Sheila has been a ratings dynamo, and that’s why she’s murdered so many people.
—Lynette Rice, Deadline, 6 Sep. 2024
See all Example Sentences for dynamo 
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Sara Holdren, Vulture, 11 July 2024
Also stunning the audience were performances from sibling duo Larkin Poe, Red Dirt country-rockers Turnpike Troubadours, and the octave-scaling, peerless vocal dynamo The War and Treaty (who drew an instant, rowdy standing ovation).
—Jessica Nicholson, Billboard, 19 Sep. 2024
Managing For The Long Term Even since On Holding stepped into the public market in September 2021, it’s been a growth dynamo.
—Pamela N. Danziger, Forbes, 8 Sep. 2024
Sheila has been a ratings dynamo, and that’s why she’s murdered so many people.
—Lynette Rice, Deadline, 6 Sep. 2024
See all Example Sentences for dynamo
Dictionary Entries Near dynamo
Cite this Entry
“Dynamo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dynamo. Accessed 22 Nov. 2024.
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