[in-truh-dos, -dohs, in-trey-dos, -dohs]

noun, plural in·tra·dos [in-truh-dohz, in-trey-dohz] /ˈɪn trəˌdoʊz, ɪnˈtreɪ doʊz/, in·tra·dos·es. 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 Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for intrados

Historical Examples of intrados

British Dictionary definitions for intrados


noun plural -dos or -doses

architect the inner curve or surface of an arch or vaultCompare extrados

Word Origin for intrados

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