V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MSS
       Maximum Segment Size (TCP, ADSL)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MSS
       Microsoft Speech Server (MS)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MSS
       MIMOLA Software System (MIMOLA)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MSS
       Mobile Synchronisation Services (mobile-systems)


The Free On-line Dictionary of Computing (30 December 2018):

maximum segment size
MSS

    (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)