MSS

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

maximum segment size
MSS

   <networking> (MSS) The maximum amount of {TCP} data that a
   {node} can send in one {segment}.  This should be the size of
   the receiver's reassembly buffer to try to avoid
   {fragmentation}.

   The equivalent at the {physical layer} is "{Maximum
   Transmission Unit}".

   (1998-03-06)

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

MSS
       Maximum Segment Size (TCP, ADSL)

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

MSS
       Microsoft Speech Server (MS)

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

MSS
       MIMOLA Software System (MIMOLA)