/rip"rap'/ , n. , v. , riprapped, riprapping .
n.
1. a quantity of broken stone for foundations, revetments of embankments, etc.
2. a foundation or wall of stones thrown together irregularly.
v.t.
3. to construct with or strengthen by stones, either loose or fastened with mortar.
[ 1570-80; gradational redupl. of RAP 1 ]