scrubber n
1 A board or fender bar along the side of a boat or vessel to protect hull from scraping; RUBBER, SCRUB BOARD.
1969 Nfld Qtly July, p. 20 ~ a protecting board along the top outside edge of a boat. Q 71-8 [They are] what we would call scrubbers, strips of wood fastened to the plank of a boat, running fore and aft along the bilge to protect her from damage when they pulled up on a beach.
2 Comb scrubber tire: boat's fender; RUBBER.
M 70-29 Scrubber tires are old car, truck or airplane tires fastened over the side of a boat to prevent the sides of the boat from scrubbing against the wharf.
