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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When the full moon appears, the moon will look smaller and dimmer than usual. Mariyam Muhammad, USA Today, 30 Apr. 2026 According to standard theories, that should mean a much dimmer and less energetic nebula. Rupendra Brahambhatt, Interesting Engineering, 26 Apr. 2026 Avoid lighting that's too dim or too bright, and install dimmers to control the mood. Maria Sabella, The Spruce, 19 Apr. 2026 To the lower right of Sirius is Mirzam, a dimmer but distinct star that marks the hound’s elevated paw. Mike Lynch, Twin Cities, 12 Apr. 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 3 May. 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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