biathlonPronunciation: /bʌɪˈaθlɒn, -lən/Translate biathlon | into German Definition of biathlon noun a Nordic skiing event in which the competitors combine cross-country skiing and rifle shooting. Derivatives biathletePronunciation: /-liːt/ noun Origin: 1950s: from bi- 'two' + Greek athlon 'contest', on the pattern of pentathlon. Compare with duathlonbiathlon in other Oxford dictionaries Definition of biathlon in the US English dictionary