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tri

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tri-

 
Use tri in a Sentence
a combining form meaning “three,” used in the formation of compound words: triacid; triatomic.
Origin:
ME < L, comb. form repr. L trēs, tria, Gk treîs, tría three
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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tri is a Hold
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Word Origin & History

tri- 
comb. form meaning "three," from L. tres (neut. tria) or Gk. treis (neut. tria) "three" (see three).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

tri- pref.

  1. Three: tricuspid.

  2. Containing three atoms, molecules, or groups: triacetic acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Abbreviations & Acronyms
TRI

  1. Toxic Release Inventory

  2. Triangulum (constellation)

  3. Tri-Cities [TN] Regional Airport

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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