out·rig·ger
noun/ˈaʊtrɪɡə(r)/
/ˈaʊtrɪɡər/
- a wooden structure that is fixed to the side of a boat or ship in order to keep it steady in the water; a boat fitted with such a structure
舷外托架；有舷外托架的小船 Word Originmid 18th cent.: perhaps influenced by the obsolete nautical term outligger, in the same sense.