PID

from WordNet (r) 3.0 (2006)

PID
    n 1: inflammation of the female pelvic organs (especially the
         Fallopian tubes) caused by infection by any of several
         microorganisms (chiefly gonococci and chlamydia); symptoms
         are abdominal pain and fever and foul-smelling vaginal
         discharge [syn: {pelvic inflammatory disease}, {PID}]

from The Free On-line Dictionary of Computing (8 July 2008)

process identifier
PID
process ID

   <operating system> (PID) An integer used by the {Unix}
   {kernel} to uniquely identify a process.  PIDs are returned by
   the {fork} {system call} and can be passed to wait() or
   kill() to perform actions on the given process.

   (1996-12-09)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

PID
       Packet IDentification (DVB)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

PID
       Protocol IDentifier [governing connection types]

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

PID
       Process IDentification number (Unix)

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