from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having or involving three sides, countries, or parties.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having three sides.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having three sides; being three-sided.
from The Century Dictionary and Cyclopedia
- Having three sides.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. involving three parties
- n. a three-sided polygon
- adj. having three sides
From Latin trilaterus : tri-, tri- + latus, later-, side.(American Heritage® Dictionary of the English Language, Fourth Edition)
tri- + lateral (Wiktionary)