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

GDB
       GNU DeBugger (GNU)


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

GDB

    GNU debugger.  The FSF's source-level
   debugger for C, C++ and other languages.  Developed by
   many people but most recently Fred Fish , Stu
   Grossman  and John Gilmore
    all of Cygnus Support.  GDB fills the same
   niche as dbx.  Programs must be compiled to include
   debugging symbols.

   Version 4.11.  Distributed under GNU CopyLeft.  It runs on
   most Unix variants, VMS, VXWorks, Amiga and MS-DOS.

   FTP gdb-*.tar.[zZ] from a GNU archive site.
   E-mail:  (bug reports).

   (1993-10-29)