Outrigger

Chamber's Twientieth Century Dictionary · 1908 · p. 72

owt′rig-ėr, n. a projecting spar for extending sails or any part of the rigging: a projecting contrivance ending in a float fixed to the side of a canoe against capsizing: an iron bracket fixed to the outside of a boat carrying a rowlock at its extremity to increase the leverage of the oar: a light racing-boat with projecting rowlocks.