intrados

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

noun

, Architecture.

, plural in·tra·dos [in, -tr, uh, -dohz, in-, trey, -dohz], in·tra·dos·es.

1. the interior curve or surface of an arch or vault. Compare extrados ( def ).

intrados

/ ɪnˈtreɪdɒs /

noun

1. architect the inner curve or surface of an arch or vault Compare extrados

Word History and Origins

Origin of intrados¹

1765–75; < French, equivalent to intra- intra- + dos back; dosser ¹

Word History and Origins

Origin of intrados¹

C18: from French, from intra- + dos back, from Latin dorsum

Example Sentences

The under or concave side of the voussoirs is called the intrados, and the upper or convex side the extrados of the arch.

From Project Gutenberg

In S. Sophia the vault springs from the intrados of the transverse arches, that is, from the lower edge.

From Project Gutenberg

The four sides of the mold formed the extrados, the intrados, and the two ends of the block; the other two sides being left open.

From Project Gutenberg

The stability of such structures depends on the position of the line of pressure in relation to the extrados and intrados of the arch ring.

From Project Gutenberg

It was determined to attempt to stop these leaks by the application of a water-proof cement coating on the intrados of the arch.

From Project Gutenberg