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Noun: ironman (ironmen)
  1. (sport) a strong man of exceptional physical endurance
    "He trained for years to compete in the Ironman triathlon";
    - iron man
Noun: Ironman  'I-u(r)n,man
  1. (trademark) a long-distance triathlon race, traditionally consisting of a 2.4-mile swim, 112-mile bicycle ride, and 26.2-mile run, though distances may vary in some events
    "She completed her first Ironman in under 12 hours"

Derived forms: iron men, ironmen

Type of: adult male, bozo [N. Amer, informal], cat [N. Amer, informal], chappie [Brit, informal], geezer [Brit, informal], guy [informal], hombre [N. Amer, informal], man, sod [informal]

Encyclopedia: Ironman