Lan"cet (?), n. [F. lancette, dim. of lance lance. See Lance.]
A surgical instrument of various forms, commonly sharp-pointed and two-edged, used in venesection, and in opening abscesses, etc.
An iron bar used for tapping a melting furnace.
Lancet arch Arch., a pointed arch, of which the width, or span, is narrow compared with the height. -- Lancet architecture, a name given to a style of architecture, in which lancet arches are common; -- peculiar to England and 13th century. -- Lancet fish. Zool. (a) A large, voracious, deep-sea fish (Alepidosaurus ferox), having long, sharp, lancetlike teeth. (b) The doctor, or surgeon fish.
© Webster 1913.