What is the meaning of Lancet?

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.

An iron bar used for tapping a melting furnace.

A high narrow window, terminating in an arch acutely pointed, often double or triple, common in the first half of the 13th century.

To pierce with a lancet.

Alternative form of launcet

lancet (sharp, pointed, two-edged surgical instrument)

lancet (small, sterile, single-use needle)

Source: wiktionary.org