First Known Use: 1988
Dictionary
duathlon
noun du·ath·lon \dü-ˈath-lən, -ˌlän also dyü-\
Definition of DUATHLON
: a three-part long-distance race typically having a running phase, a bicycling phase, and a final running phase
— du·ath·lete \dü-ˈath-ˌlēt also dyü-\ noun
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Origin of DUATHLON
duo- + -athlon (as in triathlon)
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