Dictionary
try•sail
Pronunciation: (trī'sāl"; Naut.trī'sul), [key]—
n. Naut.
a triangular or quadrilateral sail having its luff hooped or otherwise bent to a mast, used for lying to or keeping a vessel headed into the wind; spencer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.