stylet
/ˈstaɪlɪt/noun
1
- Medicine a slender probe【医】细探子, 细探针。
1.1
- a wire or piece of plastic run through a catheter or cannula in order to stiffen it or to clear it通管丝, 管心针。
2
- Zoology (in an invertebrate) a small style, especially a piercing mouthpart of an insect【动】（无脊椎动物的）小针刺; 吻针; 口锥。
词源
late 17th cent.: from French stilet, from Italian stiletto （see STILETTO）.