1. affected by or subjected to backwash (water flowing backward)

Examples

• The backwashed shore was littered with debris from the receding wave.
• The boat’s propeller created a backwashed area behind it.
• After the tsunami, the backwashed coastline revealed hidden rocks.
• The backwashed pool deck was slippery from the splashing water.
• Marine biologists studied the backwashed tidal pools for specimens.