triathlon

noun

tri·​ath·​lon trī-ˈath-lən 

-ˌlän,

 nonstandard  -ˈa-thə-

: an athletic contest that is a long-distance race consisting of three phases (such as swimming, bicycling, and running)

Examples of triathlon in a Sentence

Recent Examples on the Web

Who's winning the AI race Competition in AI is less a single race than a triathlon: There's a face-off to develop the most advanced generative AI foundation models; a battle to win customers by making AI useful; and a struggle to build costly infrastructure that makes the first two goals possible. —Ina Fried, Axios, 11 Dec. 2024

And as a veteran triathlon journalist, Culp has particularly good access and insights into that world. —Alex Hutchinson, Outside Online, 2 Dec. 2024

The highly anticipated and challenging triathlon will take place in the Valley throughout the day on Sunday, November 15. —Olivia Rose, The Arizona Republic, 16 Nov. 2024

Creatine does not provide much benefit for endurance events like marathons, triathlons, or long cycling races. —Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 24 Oct. 2024

Word History

Etymology

tri- + -athlon (as in decathlon)

First Known Use

1924, in the meaning defined above

Kids Definition

triathlon

noun

tri·​ath·​lon ˌtrī-ˈath-ˌlän 

: an athletic contest that is a long-distance race consisting of three phases (as swimming, bicycling, and running)