资料来源 : pyDict

大三角帆

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Spinnaker \Spin"na*ker\, n. (Naut.)
   A large triangular sail set upon a boom, -- used when running
   before the wind.

资料来源 : WordNet®

spinnaker
     n : large and usually triangular headsail; carried by a yacht as
         a headsail when running before the wind