[1] : The Collaborative International Dictionary of English v.0.48

lancet \lan"cet\, n. f. lancette, dim. of lance lance. see
   lance.
   1. a surgical knife-like instrument of various forms,
      commonly sharp-pointed and two-edged, used in venesection,
      and in opening abscesses, etc.
      1913 webster

   2. metal. an iron bar used for tapping a melting furnace.
      --knight.
      1913 webster

   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.
      1913 webster lancetfish
see also:
lance lancet arch lancet architecture 

[2] : WordNet (r) 2.0

lancet arch
     n : an acutely pointed gothic arch, like a lance syn: lancet
see also:
lancet 

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