What is the meaning of Triathlon?

An athletics event in which contestants compete in swimming, cycling and running in turn.

A former Olympic athletics event in which contestants compete in long jump, shot put, and 100-yard dash.

Generally, a sports event in which contestant compete in a combination of three sports.

triathlon (swimming, cycling and running)

triathlon

triathlon

triathlon

triathlon (swimming, cycling and running)

Source: wiktionary.org