spin·na·ker
noun/ˈspɪnəkə(r)/
/ˈspɪnəkər/
- a large extra sail on a racing yacht that you use when the wind is coming from behind
enlarge image（赛艇的）大三角帆（顺风时用） Word Originmid 19th cent.: apparently a fanciful formation from Sphinx, the name of the yacht first using it.