from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A light switch which can adjust the brightness of the switched lamp from dim to bright, as well as turning it on and off.
- n. A switch that changes the headlamps on a motor vehicle from low to high and from high to low beam; a high-beam switch; a brights switch.
Sorry, no etymologies found.
I slid my hand along the wall to the dimmer switch Neverman had played with two nights ago.