The term 'Lancet' is a five-letter word that can be used to describe a type of KNIFE. It is a long, narrow blade with a sharp point, often used for medical purposes such as lancing boils or performing surgery. The term is also used to refer to a surgical instrument with a double-edged blade, which is used for making incisions in the skin. In addition, the term 'Lancet' is also used to refer to a journal of medicine published by the Lancet Publishing Group.