rock armour
Noun
Meaning
rock armour (uncountable)
(British spelling) Rock or other suitable material used to protect shorelines, streambeds, bridge abutments, pilings and other structures against scour and water, wave, or ice erosion.
Noun
rock armour (uncountable)
(British spelling) Rock or other suitable material used to protect shorelines, streambeds, bridge abutments, pilings and other structures against scour and water, wave, or ice erosion.