An instrument for tightening the parts of a bedstead.
2
(nautical) a round hardwood disk with holes and a grooved perimeter used to tighten a shroud
3
An instrument intended to replace the knife in many operations, the parts operated on being severed by the crushing effect produced by the gradual tightening of a steel chain, so that hemorrhage rarely follows.
4
A stick or small wooden cylinder used for tightening a bandage, in order to compress the arteries of a limb. n