un equilateral

equilateral

[ee-kwuh-lat-er-uhl, ek-wuh-]
adjective
1.
having all the sides equal: an equilateral triangle.
noun
2.
a figure having all its sides equal.
3.
a side equivalent, or equal, to others.

Origin:
1560–70; < Late Latin aequilaterālis. See equi-, lateral

equilaterally, adverb
nonequilateral, adjective
nonequilaterally, adverb
subequilateral, adjective
unequilateral, adjective
unequilaterally, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
equilateral (ˌiːkwɪˈlætərəl)
 
adj
1.  having all sides of equal length: an equilateral triangle
 
n
2.  a geometric figure having all its sides of equal length
3.  a side that is equal in length to other sides
 
equi'laterally
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

equilateral
1560s, from L.L. aequilateralis, from aequi- (see equal) + lateralis (see lateral).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
equilateral   (ē'kwə-lāt'ər-əl)  Pronunciation Key 
Having all sides of equal length, as a triangle that is neither scalene nor isosceles.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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