From Longman Dictionary of Contemporary Englishlancetlan‧cet /ˈlɑːnsɪt $ ˈlæn-/ noun [countable] 1 a small very sharp pointed knife with two cutting edges, used by doctors to cut skin and flesh SYN scalpel2 → lancet window/archLancet, thethe LancetLancet, the trademark a British magazine for doctors and other people in the medical profession, produced by the British Medical Association. The Lancet provides reports on recent developments, new drugs, and medical treatments etc.Origin lancet (1400-1500) French lancette, from lance; → LANCE1