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[in-truh-dos, -dohs, in-trey-dos, -dohs] /ˈɪn trəˌdɒs, -ˌdoʊs, ɪnˈtreɪ dɒs, -doʊs/
noun, plural intrados
[in-truh-dohz, in-trey-dohz] /ˈɪn trəˌdoʊz, ɪnˈtreɪ doʊz/ (Show IPA),
intradoses. Architecture
the interior curve or surface of an arch or vault.
Compare extrados.
Origin of intrados
1765-75; < French, equivalent to intra- intra- + dos back; see dosser1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for intrados
  • Terra cotta tiles, matching the original tiles of the west facade, are placed on the intrados of the entrance.
  • The arch has a central molded keystone, carved extrados and paneled intrados.
British Dictionary definitions for intrados


noun (pl) -dos, -doses
(architect) the inner curve or surface of an arch or vault Compare extrados
Word Origin
C18: from French, from intra- + dos back, from Latin dorsum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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