noun a boat thus equipped.
2. outrigger ·noun a projecting support for a rowlock, extended from the side of a boat.
3. outrigger ·add. ·noun a projecting frame used to support the elevator or tail planes, ·etc.
4. outrigger ·noun a projecting contrivance at the side of a boat to prevent upsetting, as projecting spars with a log at the end.
5. outrigger ·noun any spar or projecting timber run out for temporary use, as from a ship's mast, to hold a rope or a sail extended, or from a building, to support hoisting teckle.