Definify.com
Webster 1913 Edition
Tetra-
Tet′ra-
.1. 
A combining form or prefix signifying four, as in tetrabasic, tetrapetalous. 
2. 
(Chem.) 
A combining form (also used adjectively) denoting four proportional or combining parts of the substance or ingredient denoted by the term to which it is prefixed, as in tetra-chloride, tetroxide. 
Definition 2025
tetra-
tetra-
English
Prefix
tetra- (or before a vowel tetr-)
-  Forming compound words having the sense of ‘four’.
-  2006, Thomas Pynchon, Against the Day, Vintage 2007, p. 665: [cf. -latry]
- Which is how Kit first heard about the T.W.I.T. back in London, and of the ghostly neo-Pythagorean cult of tetralatry or worship of the number four, currently the rage in certain European circles
 
 
 -  2006, Thomas Pynchon, Against the Day, Vintage 2007, p. 665: [cf. -latry]
 
Synonyms
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  <a class='CategoryTreeLabel  CategoryTreeLabelNs14 CategoryTreeLabelCategory' href='/wiki/Category:English_words_prefixed_with_tetra-'>English words prefixed with tetra-</a>
		
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Translations
forming compound words having the sense of ‘four’
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Italian
Prefix
tetra- or before a vowel tetr-
Synonyms
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