quad·ri·lat·er·al  (kwŏd'rə-lāt'ər-əl) 
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n.
Mathematics
A polygon having four sides.
adj. Having four sides. |
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
quadrilateral (n.)
1650, from L.
quadrilaterus, from
quadri- "four" +
latus (gen.
lateris) "side" (see
oblate (n.)).
Medical Dictionary
Main Entry:
quad·ri·lat·er·al Pronunciation:
"kwäd-r&-'lat-&-r&l, -'la-tr&l Function:
adjective : havingfour sides
quadrilateral muscle>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
quadrilateral (kwŏd'rə-lāt'ər-əl) Pronunciation Key
A polygon that has four sides, such as a rectangle or rhombus.
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The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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