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。
Word Originlate Middle English (also denoting a small lance): from Old French lancette, diminutive of lance ‘a lance’.