n.
An athletic contest in which participants compete without stopping in three successive events, usually long-distance swimming, bicycling, and running.
[TRI- + (DEC)ATHLON.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
