generator

noun

gen·​er·​a·​tor ˈje-nə-ˌrā-tər How to pronounce generator (audio)
1
: one that generates: such as
a
: an apparatus in which vapor or gas is formed
b
: a machine by which mechanical energy is changed into electrical energy
2
: a mathematical entity that when subjected to one or more operations yields another mathematical entity or its elements
specifically : generatrix

Did you know?

Generators work by rotating a coil of wire in a magnetic field, causing a current to flow in the wire. A generator may be a huge spinning turbine powered by water, wind, steam, gas, or nuclear reactions, which sends electricity out through power lines to thousands of customers. But normally when we use the word, we're thinking of a small machine powered by gasoline or diesel, such as you might keep in your basement for those times when a storm knocks out your power, to create electricity right in front of your eyes. A special kind of generator called an alternator powers a car's electrical system (including its lights, power steering, etc.) while the car is running.

Examples of generator in a Sentence

This new product will be a major revenue generator. a backup generator for the store
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Authorities emphasize the importance of generator safety and proper ventilation. Cathy Kozlowicz, jsonline.com, 14 Aug. 2025 This update followed news the village’s backup generator system for its water system was not working properly as of 9:13 a.m. Temperatures in Newberry are expected to reach highs of 86 degrees on Saturday and 82 degrees on Sunday, according to the National Weather Service. Natalie Davies, Freep.com, 10 Aug. 2025 Around 2024, some AI image generators started to return nearly exact replicas of frames from films, indicating that they could’ve been used to teach some AI systems. Winston Cho, HollywoodReporter, 6 Aug. 2025 Chop Robinson, the Dolphins’ 2024 first-round pick, heated up in the second half of his rookie season, becoming one the NFL’s most impactful pressure generators during the final eight games of the season. Omar Kelly august 5, Miami Herald, 5 Aug. 2025 See All Example Sentences for generator

Word History

First Known Use

1646, in the meaning defined at sense 1

Time Traveler
The first known use of generator was in 1646

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Cite this Entry

“Generator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/generator. Accessed 19 Aug. 2025.

Kids Definition

generator

noun
gen·​er·​a·​tor ˈjen-ə-ˌrāt-ər How to pronounce generator (audio)
: one that generates: as
a
: a piece of laboratory equipment in which vapor or gas is formed
b
: a machine by which mechanical energy is changed into electrical energy

More from Merriam-Webster on generator

Last Updated: - Updated example sentences
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