dynamo
1 Americannoun
plural
dynamos-
an electric generator, especially for direct current.
-
an energetic, hardworking, forceful person.
combining form
noun
-
a device for converting mechanical energy into electrical energy, esp one that produces direct current Compare generator
-
informal an energetic hard-working person
Etymology
Origin of dynamo
First recorded in 1882; short for dynamoelectric
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Although it can be loosely compared to the motion of a spinning conductor in a bicycle dynamo, the true processes driving the field are far more complicated.
From Science Daily
Philadelphia never resembled the diverse-threat dynamo they were in their Super Bowl run.
According to Helled, "Our models have so-called "ionic water" layers which generate magnetic dynamos in locations that explain the observed non-dipolar magnetic fields. We also found that Uranus' magnetic field originates deeper than Neptune's."
From Science Daily
When David Ellison took the reins of Paramount Skydance just four months ago, he promised to rapidly transform the storied movie studio and television business into a tech-forward dynamo well positioned for growth.
From MarketWatch
She’s excellent in the role, small and vulnerable yet tough and fierce, a pink-clad dynamo who is nevertheless beholden to others.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.