stylet

stylet is a   Noun

Definition:

[1] A small poniard; a stiletto.

[2] An instrument for examining wounds and fistulas, and for passing setons, and the like; a probe, -- called also specillum.

[3] A stiff wire, inserted in catheters or other tubular instruments to maintain their shape and prevent clogging.

[4] Any small, more or less rigid, bristlelike organ; as, the caudal stylets of certain insects; the ventral stylets of certain Infusoria.

Synonyms: