lancet

Definitions

• A sharp, pointed, two-edged surgical instrument used in venesection and for opening abscesses etc.
• A small, sterile single-use needle used to draw a drop of blood for testing, as with a glucometer.
• (metallurgy) An iron bar used for tapping a melting furnace.
• (architecture) A high narrow window, terminating in an arch acutely pointed, often double or triple, common in the first half of the 13th century.