- any screen or board protecting riders on a vehicle from being splashed in wet weather
- a screen to keep water from splashing onto the deck of a boat
- a trap for closing a sluice or spillway
See splashboard in American Heritage Dictionary 4
- A structure that protects the upper part of a vehicle from splashes of mud.
- Nautical A screen on a boat to keep water from splashing onto the deck.
- A board for closing a spillway or sluice.