Definition of dimmer in English:
1 (also dimmer switch) A device for varying the brightness of an electric light.
- The bathrooms are smartly tiled in black and white, and feature the unusual touch of a dimmer switch for the lights.
- I turned down the dimmer switch as the harsh lights still hurt my eyes a little bit.
- He was picturing a dimmer switch, and watching it turn down, lowering the lights to a more pleasant level.