A bubble bath is liquid that foams up in bathwater. Run a bubble bath.
The foam is added under a running tap, since pouring it into still water does nothing. A bubble bath keeps the water warm longer, because the foam traps the heat.
1nounbubble bathLiquid that foams up in bathwater.
“The bubble bath filled half the room.”
bubble bath is a product.
Practised in Hair & Grooming