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

XRB is

  • X- Ray Background

XRB is also in:

Acronym Definition Searched: TDP ROPE 76483 M GES2 WCBM 47320 1J2 BKI CNA NBH COLLOQ DDS VPL PACS