tri- - Dictionary definition and pronunciation - Yahoo! Education
Reference
Dictionary
Encyclopedia
Thesaurus
World Factbook
Spanish Dictionary
Anatomy
Conversion Calculator

Word of the Day
rationale
Definition: (noun) an underlying reason or explanation.
Petersons.com
Add Word of the Day to your personalized My Yahoo! page:
Add to My Yahoo! View RSS Feed
About My Yahoo! and RSS »
  

tri-

pref.
  1. Three: trilobate.
    1. Occurring at intervals of three: trimonthly.
    2. Occurring three times during: triweekly.
ETYMOLOGY:
Middle English, from Latin, and Greek; see trei- in Indo-European roots


 Visit our partner's site
Provided by Houghton Mifflin
logoeReference -- Download this interactive reference software to your desktop computer