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extradoses

 - 2 dictionary results

ex⋅tra⋅dos

  [ek-struh-dos, -dohs, ek-strey-dos, -dohs]
Use extradoses in a Sentence
–noun, plural -dos  [-dohz, -dohz] , -dos⋅es. Architecture.
the exterior curve or surface of an arch or vault.
Also called back.
Compare intrados.

Origin:
1765–75; < F, equiv. to extra- extra- + dos back (< L dorsum dorsum
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ex·tra·dos   (ěk'strə-dŏs', -dōs')   
n.   pl. ex·tra·dos (-dōz') or ex·tra·dos·es (-dŏs'ĭz)
The upper or exterior curve of an arch.

[French : Latin extrā, outside; see extra- + French dos, back (from Latin dorsum).]
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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