1. a small, sharp, two-edged surgical knife
Usage: medical
2. a tall, narrow window with a pointed arch at the top
Usage: architecture

Examples

• The surgeon used a lancet to make a small incision.
• The doctor sterilized the lancet before the procedure.
• Medieval cathedrals often featured beautiful lancet windows.
• The Gothic church had three lancet windows above the altar.
• She pricked her finger with a lancet to test her blood sugar.
• The lancet windows allowed narrow beams of colored light to enter the chapel.