lancet

Meanings

1. A sharp, pointed, two-edged surgical instrument used in venesection and for opening abscesses etc.
2. A small, sterile single-use needle used to draw a drop of blood for testing, as with a glucometer.
3. An iron bar used for tapping a melting furnace.
4. A high narrow window, terminating in an acutely pointed arch, common in Gothic architecture.

1. To pierce with a lancet.

1. A surname.

Etymology

From Middle English launcet, from Old French lancete, a diminutive of lance. By surface analysis, lance + -et.