tdf

from The Free On-line Dictionary of Computing (8 July 2008)

TDF

   <language> An {intermediate language}, a close relative of
   {ANDF}.  A TDF program is an {ASCII} stream describing an
   {abstract syntax tree}.

   TDF became part of {TenDRA} in abut 2001.

   ["TDF Specification", Defence Research Agency/Electronics
   Division, Great Malvern, England, +44 684 895314].

   (2003-05-13)