faucetlight
nounUK /ˈfɔːsɪtlaɪt/
US /ˈfɔːsɪtlaɪt/
A small light that you put on a tap so water can glow.
She turned on the faucetlight to wash her hands in the dark.
OTHER MEANINGS
2. A tiny LED attached to a tap that changes color with water temperature.
The faucetlight turned red, so he knew the water was hot.
3. A nightlight shaped like a faucet.
The child's faucetlight glowed softly beside the bathtub.
4. A device that lights up when water flows from a tap.
The faucetlight switched on as soon as the tap opened.