- a competitor in a triathlon.
Origin of triathlete
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for triathlete
His athleticism also led him to become a triathlete during this period.Glen Doherty Obituary: Navy SEAL Killed in Libya
September 13, 2012
Word Origin and History for triathlete
Online Etymology Dictionary, © 2010 Douglas Harper