Pronunciation: (skī'sāl"; Naut.skī'sul), [key]
1. (in a square-rigged vessel) a light square sail next above the royal. See diag. under ship.
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.