jackstay

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jack·stay

 (jăk′stā′)
n. Nautical
1. A stay for racing or cruising vessels used to steady the mast against the strain of the gaff.
2. A rope, rod, or batten along the upper side of a yard, gaff, or boom to which a sail is fastened.
3. A rope or rod running vertically on the forward side of the mast on which the yard moves.

jackstay

(ˈdʒækˌsteɪ)
n
1. (Nautical Terms) a metal rod, wire rope, or wooden batten to which an edge of a sail is fastened along a yard
2. (Nautical Terms) a support for the parrel of a yard

jack•stay

(ˈdʒækˌsteɪ)

n.
1. a rod or batten, following a yard, gaff, or boom, to which one edge of a sail is bent.
2. a rail for guiding the movement of the hanks of a sail.
[1830–40]
References in periodicals archive ?
Burke Marine has a full range of what your body may need for heading offshore as well as jackstays, harnesses, tethers and Personal Flotation Devices (PFDs) that are so lightweight and unobtrusive now, they are referred to as a bit of a fashion item.