IPA: /ˈrɪpræpɪŋ/
KK: /ˈrɪpræpɪŋ/
A type of construction that uses loose stones or rocks to protect shorelines, riverbanks, or slopes from erosion.
The engineers decided to use riprapping to prevent the riverbank from collapsing during heavy rains.
Riprapping is derived from the word 'riprap' (from the Middle English 'riprappe', meaning loose stones used to protect a bank or shore). The term 'riprap' itself is a combination of 'rip' (meaning to tear or break) and 'rap' (meaning to strike or hit). The word 'riprapping' refers to the process of laying down loose stones to prevent erosion or damage to a bank or shore.
Think of 'loose stones' ('riprap') being 'laid down' ('-ing') to protect a bank or shore from erosion.