IPA: /ˈdjuːəθliːt/
KK: /ˈduːəθliːt/
A person who competes in a duathlon, which is a race that includes running and cycling.
She trained hard to become a successful duathlete.
**Duathlete** → It is formed from "duo-" (from Latin *duo*, meaning two) and "athlete" (from Greek *athlētēs*, meaning one who competes for a prize). The word "duathlete" refers to a person who competes in a race that consists of two different disciplines, typically running and cycling.
Think of 'duo' meaning 'two' and 'athlete' as someone who competes. A duathlete is someone who competes in two sports.