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Definition of dynamo

dynamo

/ˈdaɪ.nə.moʊ/
dy · na · mo
Adverb:dynamically
•
Plural:dynamos
•
Adjective:dynamic
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dynamo Lexical Profile

dynamo Game Scores & Validity

• noun

1

An extremely energetic, hardworking, and forcefully effective person.

Example

"As a political dynamo, she single-handedly organized the grassroots campaign that led to the unexpected victory."

2

A machine that converts mechanical energy into electrical energy, typically by means of rotating coils of copper wire in a magnetic field.

Example

"The hydroelectric dam uses a massive dynamo to generate electricity for the entire valley."

Synonyms
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Antonyms
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• Nearby Words

dwarf sand boa
dwelling
dye
dynamo
dynjandi
dyssodia
eagle

Word Origin & Etymology

Late 19th century: an abbreviation of 'dynamoelectric machine', derived from the Greek 'dunamis' meaning 'power'.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Dynamo. In Wordmom Dictionary. Retrieved Oct 17, 2026, from https://wordmom.com/dictionary/dynamo
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