from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A system of betting in which the bettor must pick the first three winners in the correct sequence. Also called triple.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A bet in which the bettor must select the first three placegetters of a race in the order in which they finish.
- n. The attainment of three important achievements, qualities, etc.
- n. A set of three related things, often things that cause problems.
tri- + (per)fecta.(American Heritage® Dictionary of the English Language, Fourth Edition)
From tri- + (per)fecta. (Wiktionary)