triathlon
noun/traɪˈæθlən/
/traɪˈæθlən/
- a sporting event in which people compete in three different sports, usually swimming, cycling and running compare biathlon, decathlon, heptathlon, pentathlon, tetrathlon see also Ironman™Topics Sports: other sportsc1Word Origin1970s: from tri- ‘three’, on the pattern of decathlon.
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