%stylet%

n. [ F., dim. of style; cf. It. stiletto. See Stiletto. ] A small poniard; a stiletto. [ 1913 Webster ]

2. (Surg.) (a) An instrument for examining wounds and fistulas, and for passing setons, and the like; a probe, -- called also specillum. (b) A stiff wire, inserted in catheters or other tubular instruments to maintain their shape and prevent clogging. [ 1913 Webster ]

3. (Zool.) Any small, more or less rigid, bristlelike organ; as, the caudal stylets of certain insects; the ventral stylets of certain Infusoria. [ 1913 Webster ]