meaning of outrigger
1. Any spar or projecting timber run out for temporary use, as from a ships mast, to hold a rope or a sail extended, or from a building, to support hoisting teckle.
2. A projecting support for a rowlock, extended from the side of a boat.
3. A boat thus equipped.
4. A projecting contrivance at the side of a boat to prevent upsetting, as projecting spars with a log at the end.
5. a stabilizer for a canoe; spars attach to a shaped log or pontoon parallel to the hull