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

MMXI is

  • Media Metrix, Inc.

MMXI is also in:

Acronym Definition Searched: WALC WFO VDU HOE ICF 59620 66282 QPR TDI CNPU VS 81140 HES HMTUSA 91906