ma ‧ raud ‧ ing /məˈrɔːdɪŋ $ -ˈrɒː-/ BrE AmE adjective [only before noun] written
[ Date: 1600-1700 ; Language: French ; Origin: marauder , from maraud 'homeless person who travels around' ]
a marauding person or animal moves around looking for something to destroy or kill:
marauding street gangs
—marauder noun [countable]