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intrados

 - 2 dictionary results

in⋅tra⋅dos

[in-truh-dos, -dohs, in-trey-dos, -dohs]
–noun, plural -dos [-dohz, -dohz] , -dos⋅es. Architecture.
the interior curve or surface of an arch or vault.
Compare extrados.


Origin:
1765–75; < F, equiv. to intra- intra- + dos back; see dosser
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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in·tra·dos   (ĭn'trə-dŏs', -dō', ĭn-trā'dŏs', -dōs')   


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n.   pl. in·tra·dos (-dōz') or in·tra·dos·es (-dŏs'ĭz) Architecture
The inner curve of an arch.

[French : intra-, within (from Latin intrā-; see intra-) + dos, back (from Old French, 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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