Trysail
Pronunciation : Try"sail
Part of Speech : n.
Definition : Defn: A fore-and-aft sail, bent to a gaff, and hoisted on a lower mast or on a small mast, called the trysail mast, close abaft a lower mast; -- used chiefly as a storm sail. Called also spencer. Totten.
(Naut.)
Source : Webster's Unabridged Dictionary, 1913