noun.
A stay extending from the head of the foremast to the bowsprit of a ship.
The Century Dictionary and Cyclopedia
noun.Nautical, a strong rope (now generally of wire, and double) extending forward from the head of the foremast to the knight-heads to support the mast.
the GNU version of the Collaborative International Dictionary of English
noun.
A large, strong rope, reaching from the foremast head to the bowsprit, to support the mast. See Illust. under ship.