资料来源 : Webster's Revised Unabridged Dictionary (1913)

Sig \Sig\, n. [Akin to AS. s[=i]gan to fall. [root]151a. See
   {Sink}, v. t.]
   Urine. [Prov. Eng.]

资料来源 : Free On-Line Dictionary of Computing

SIG
     
        {Special Interest Group}

Sig
     
        Signal Processing, Analysis, and Display program.  An
        environment with an associated programming language by Jan
        Carter of {Argonne National Lab}.  Telephone +1 (312) 972
        7250.
     
        [{Jargon File}]

sig
     
        {signature}