dynamo

¹

[ dahy-nuh-moh ]

noun

, plural dy·na·mos.

1. an electric generator, especially for direct current.
2. an energetic, hardworking, forceful person.

dynamo-

²

1. variant of dyna-:

   dynamometer.

dynamo

¹

/ ˈdaɪnəˌməʊ /

noun

1. a device for converting mechanical energy into electrical energy, esp one that produces direct current Compare generator
2. informal.
   an energetic hard-working person

dynamo-

²

combining_form

1. indicating power

   dynamoelectric

   dynamite

dynamo

/ dī′nə-mō′ /

1. An electric generator, especially one that produces direct current.
2. See more at generator

Word History and Origins

Origin of dynamo¹

First recorded in 1882; short for dynamoelectric

Word History and Origins

Origin of dynamo¹

C19: short for dynamoelectric machine

Origin of dynamo²

from Greek, from dunamis power

Example Sentences

Now Madhure — physical therapist, mother of two and local political dynamo — feels the small stream of her journey in America has flowed into a mighty river, with many, many others.

From Los Angeles Times

The sun's surface is a brilliant display of sunspots and flares driven by the solar magnetic field, which is internally generated through a process called dynamo action.

From Science Daily

The latest findings published in the journal Nature “will be an important step toward finally resolving” this mysterious process known as solar dynamo, added co-author Daniel Lecoanet of Northwestern University.

From Seattle Times

Earth's magnetic field is generated by mixing of the molten iron in the fluid outer core, driven by buoyancy forces as the inner core solidifies, which create a dynamo.

From Science Daily

It also undermines his lifelong effort to portray himself as an irresistible Lothario and sexual dynamo.

From Salon