tetragonal

te·trag·o·nal

[te-trag-uh-nl]
adjective
1.
pertaining to or having the form of a tetragon.
2.
Crystallography. noting or pertaining to a system of crystallization in which all three axes are at right angles to one another, two being equal in length and the third being of a different length.
Compare crystal system.


Origin:
1565–75; tetragon + -al1

te·trag·o·nal·ly, adverb
te·trag·o·nal·ness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
tetragonal (tɛˈtræɡənəl) [Click for IPA pronunciation guide]
 
adj
1.  crystallog Also: dimetric relating or belonging to the crystal system characterized by three mutually perpendicular axes of which only two are equal
2.  of, relating to, or shaped like a quadrilateral
 
te'tragonally
 
adv
 
te'tragonalness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Tetragonal is always a great word to know.
So is ninnyhammer. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a fool or simpleton; ninny.
American Heritage
Science Dictionary
tetragonal   (tě-trāg'ə-nəl)  Pronunciation Key 
Relating to a crystal having three axes, two of which are of the same length and are at right angles to each other. The third axis is perpendicular to these. The mineral zircon has tetragonal crystals. See illustration at crystal.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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