Meaning of skysail

sky•sail

Pronunciation: (skī'sāl"Naut.skī's&schwal), [key]
— n. Naut.
  1. (in a square-rigged vessel) a light square sail next above the royal. See diag. under
  2. a triangular sail set on a stay between the fore and main trucks of a racing schooner.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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