dynamo

¹

[dahy-nuh-moh]

noun

plural

dynamos 

1. an electric generator, especially for direct current.

2. an energetic, hardworking, forceful person.

dynamo-

²

Also dynam-.

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

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

Eventually, the tween dynamo dreams of working with artificial intelligence at aerospace giant SpaceX.

From Los Angeles Times

The appearance of constant action, of being human dynamos, is a common tactic of authoritarians and fascist leaders.

From Salon

A woman who posts this content wants us to believe she's such a sexual dynamo she's snagged a man who is willing to pay all her bills.

From Salon

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