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quadrilateral
Use
Quadrilateral
in a sentence
quadrilateral
^{}
/
ˌkwɒd
rəˈlæt
ər
əl
/
Show Spelled
[
kwodr
uh

lat
er
uh
l
]
Show IPA
adjective
1.
having four sides.
noun
2.
a plane figure having four sides and four angles.
3.
something of this form.
4.
Geometry
.
a.
a figure formed by four straight lines that have six points of intersection.
b.
a
polygon
with four sides.
5.
the space enclosed between and defended by four fortresses.
Relevant Questions
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Origin:
1640–50;
<
Latin
quadrilater
(
us
) foursided +
al
^{1}
. See
quadri
,
lateral
Related forms
quadrilaterally,
adverb
quadrilateralness,
noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source

Link To
quadrilateral
Collins
World English Dictionary
quadrilateral
(ˌkwɒdrɪˈlætərəl)
—
adj
1.
having or formed by four sides
—
n
2.
Also called:
tetragon
a polygon having four sides. A
complete quadrilateral
consists of four lines and their six points of intersection
Collins English Dictionary  Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History
quadrilateral
1650, from L. quadrilaterus, from quadri "four" + latus (gen. lateris) "side" (see
oblate
(n.)).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Science Dictionary
quadrilateral
(kwŏd'rəlāt'ərəl)
Pronunciation Key
A polygon that has four sides, such as a rectangle or rhombus.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
It is not a parallelogram, for it is not a rightlined
quadrilateral
figure.
The good news is that the
quadrilateral
world, for all its power struggles, is unlikely to resort to allout war.
Their cardinal positions and the
quadrilateral
symmetry seemed to say that nothing else would be permitted to go in those spaces.
For a cyclic
quadrilateral
, the exterior angle is equal to the interior opposite angle.
In longitudinal section they are
quadrilateral
in shape, being about twice as long as they are broad.
When the forearm is flexed the upper
quadrilateral
surface is palpable, but during extension it recedes into the olecranon fossa.
They will create a transparency that names the
quadrilateral
and its characteristics, and illustrates the diagonals and midpoints.
The diagonal divides the original
quadrilateral
into two triangles.
The normal area vector is usually easily defined for a
quadrilateral
or triangular cell face.
Explain that you will be giving them an area and they must draw a
quadrilateral
that has that area.
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