lancet
noun /ˈlɑːnsɪt/
/ˈlænsɪt/
- a knife with a sharp point and two sharp edges, used by doctors for cutting skin, muscle, flesh, etc.
（医生手术用的）柳叶刀，小刀 - A small needle or lancet is used to prick the finger so that a drop of blood can be collected and analysed.
一根小针或柳叶刀被用来刺破手指，以便收集和分析一滴血。
词源late Middle English (also denoting a small lance): from Old French lancette, diminutive of lance ‘a lance’. - A small needle or lancet is used to prick the finger so that a drop of blood can be collected and analysed.