Swiv′el.
1. A twisting link a in a chain consisting of a ring or hook ending in a headed pin which turns in a link of the chain. The object is to avoid kinking. 2. A small cannon b, whose trunnions are placed in a carrier, which is pivoted in a socket, so that by the two adjustments the gun may be pointed in any direction. A pivotgun. See page 1722.3. (Nautical.) A rest, having adjustment in azimuth, for supporting a small piece of ordnance on the gunwale of a boat or vessel.
4. (Saddlery.) A loop or runner through which the check-rein passes.