Source : WordNet®

ironman
     n : a strong man of exceptional physical endurance [syn: {iron
         man}]

Source : Free On-Line Dictionary of Computing

Ironman
     
        HOLWG, DoD, Jan 1977, revised Jul 1977.  Fourth of the series
        of DoD requirements that led to Ada.  "Department of Defense
        Requirements for High Order Computer Programming Languages",
        SIGPLAN Notices 12(12):39-54 (Dec 1977).  "Revised Ironman
        Requirements for High Order Computer Programming Languages",
        US Dept of Defense, Jul 1977.  (See Strawman, Woodenman,
        Tinman, Steelman).