scalpel

A small straight knife with a thin sharp blade used in surgery and dissection.

A small light knife, which may be held like a pen, used in anatomical dissection and in surgical operations, having the back of the blade straight or nearly so, the edge more or less convex, and the point sharp.

A small knife with a thin, keen blade, — used by surgeons, and in dissecting.

A small straight knife with a very sharp blade used for surgery, dissection and craftwork.

a thin straight surgical knife used in dissection and surgery