an area of hard material covering part of a wall, for example in a kitchen, so that the wall is protected and easy to clean if liquid falls onto it

Tiles are used for the floor, countertop, or backsplash. 地板、台面或防溅板等处均采用瓷砖。

The cooker has a stainless steel backsplash. 这个灶台有一个不锈钢背板。

the action of liquid splashing (= moving and falling) backwards or onto a surface that is near it

This event would have caused an enormous backsplash of water, a veritable tsunami. 这会造成海水大量逆流并陡然坠落，实际上形成海啸。

Protect the wall because of the risk of backsplash. 因为有溅洒的可能，所以要保护好墙体。