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Tetra-

 - 4 dictionary results
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tetra-

 
Use Tetra- in a Sentence
a combining form meaning “four,” used in the formation of compound words: tetrabranchiate.
Also, especially before a vowel, tetr-.

Origin:
< Gk, comb. form of téttara, neut. of téttares four
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To Tetra-
Tetra Aquarium Supplies
Whisper Filter, Air Pump, Fish Food Bio-Bags, 30-65%OFF + Free Shipping
Tetra.PetMountain.com
Tetra Aquarium Supplies
Filters, Food, Kits & Conditioners. Free Shipping on Orders Over $60.
www.PETCO.com
tetra- or tetr-  
pref.  

  1. Four: tetrode.

  2. Containing four of a specified kind of atom, radical, or group: tetrachloride.


[Greek; see kwetwer- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

tetra- 
comb. form meaning "four," from Gk. tetra-, combining form of tettares, tessares "four" (see four).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

tetra- or tetr-
pref.

  1. Four: tetradactyl.

  2. Composed of or containing four atoms, molecules, or groups: tetrasaccharide.

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