We don't have synonyms for riprapping yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rewrapping.
(n) :
(chiefly Canada, US) Rocks or other materials used to shore up an embankment, deter or prevent erosion, guide shipping, or serve as a temporary mooring.
(n) :
An underwater bank seen as a danger to shipping.
(n) :
(chiefly Canada, US) Rocks or other materials used to shore up an embankment, deter or prevent erosion, guide shipping, or serve as a temporary mooring.
(n) :
An underwater bank seen as a danger to shipping.