riprap

Definitions

1. An underwater bank seen as a danger to shipping.
   countable, uncountable
2. Rocks or other materials used to shore up an embankment, deter or prevent erosion, guide shipping, or serve as a temporary mooring.
   Canada, US, countable, uncountable

Equivalents

Examples

“They hold⟳ on, spray flying, the ceaseless racket of water impacting on rock all but swallowing them, the river pitching dizzily, snags and riprap raking like⟳ claws at the bottom of the boat.”

CEFR level