: a device that allows a person to control the brightness of a light
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This process, according to Daniel Belsky, an associate professor of epidemiology at the Robert N. Butler Columbia Aging Center at Columbia University, may be thought of as a dimmer switch that turns genes on and off.—Lindsey Leake, NBC news, 5 Apr. 2026 Make sure to choose the best dimmer switch that matches your needs, type of room, and type of light bulbs.—Lee Wallender, The Spruce, 31 Jan. 2026 The new ones used by the researchers, however, have 16 stable levels, a bit like a dimmer switch instead of a light switch.—Christopher McFadden, Interesting Engineering, 11 Jan. 2026 Unlike bulky camping lanterns, this model is sleek, stylish, and lightweight—and has a dimmer switch to create the perfect ambience.—Mariana Best, Better Homes & Gardens, 10 Oct. 2025 Think of it like a dimmer switch for your brain, nudging you towards sleep rather than forcing it.—Kathleen Ferraro, Verywell Health, 25 Sep. 2025 The device also features a rolling dimmer switch and comes with accessories like a cleaning cloth and protective pouch.—Bestreviews, Mercury News, 6 June 2025 Was this a faulty dimmer switch or just a poor installation?—Mark A. McHenry, IEEE Spectrum, 18 Aug. 2015