[1] : WordNet (r) 2.0

show-stopper
     n 1: an act so striking or impressive that the show must be
          delayed until the audience quiets down syn: showstopper,
           stopper
     2: something that is strikingly attractive or has great popular
        appeal; "she has a show-stopper of a smile"; "the
        brilliant orange flowers against the green foliage were a
        showstopper" syn: showstopper
see also:
showstopper stopper 

[2] : WordNet (r) 2.0

showstopper
     n 1: an act so striking or impressive that the show must be
          delayed until the audience quiets down syn: show-stopper,
           stopper
     2: something that is strikingly attractive or has great popular
        appeal; "she has a show-stopper of a smile"; "the
        brilliant orange flowers against the green foliage were a
        showstopper" syn: show-stopper
see also:
show-stopper stopper 

[3] : Jargon File (4.3.1, 29 Jun 2001)

showstopper n. a hardware or especially software bug that makes an
   implementation effectively unusable; one that absolutely has to be fixed
   before development can go on. opposite in connotation from its original
   theatrical use, which refers to something stunningly _good_.

[4] : The Free On-line Dictionary of Computing (27 SEP 03)

showstopper
     
        a hardware or especially software bug that makes an
        implementation effectively unusable; one that absolutely has
        to be fixed before development can go on.  opposite in
        connotation from its original theatrical use, which refers to
        something stunningly good.
     
        jargon file
     
        1995-01-31
     
     
see also:
bug jargon file 

Showstopper >> S Words
Showstopper, definition of term: Showstopper
showstopper_pag1.html