dimmer

noun

dim·​mer ˈdi-mər How to pronounce dimmer (audio)
1
: a device for regulating the intensity of an electric lighting unit
2

Examples of dimmer in a Sentence

Recent Examples on the Web
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Magriñá suggests installing dimmers on all light switches so homeowners can adjust lighting at different times of day, promoting relaxation before bed and brighter light exposure during the day. Kamron Sanders, The Spruce, 22 Feb. 2026 Even thin clouds along the western horizon can obscure the dimmer planets, so check weather conditions before heading out. Ryan Brennan, Kansas City Star, 19 Feb. 2026 Jim took a dimmer but resigned view that Microsoft's problems don't change how much companies like and use the product. Natasha Abellard, CNBC, 9 Feb. 2026 Some rooms are naturally dimmer than others, often due to small windows or because a space naturally gets less sun. Wendy Rose Gould, Martha Stewart, 8 Feb. 2026 See All Example Sentences for dimmer

Word History

First Known Use

circa 1896, in the meaning defined at sense 1

Time Traveler
The first known use of dimmer was circa 1896

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Cite this Entry

“Dimmer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dimmer. Accessed 24 Feb. 2026.

Kids Definition

dimmer

noun
dim·​mer ˈdim-ər How to pronounce dimmer (audio)
1
: a device for controlling the amount of light from an electric lighting unit (as the headlights of an automobile or the lights of a room)
2

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