Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym SMSI is...

SMSI is

  • Standard Manned Space Flight Initiator (see NSI-I)

More Meanings For SMSI:

  • Smith Micro Software, Inc.
  • Standard Manned Space Flight Initiator (see NSI-I)

SMSI is also in:

Acronym Definition Searched: TYR SNAT G DAS SMW NT CATI BEAM FDTB JSG 92135 PPP DTRS 29163 MYSYF