intrados

American  

[in-truh-dos, -dohs, in-trey-dos, -dohs] / ˈɪn trəˌdɒs, -ˌdoʊs, ɪnˈtreɪ dɒs, -doʊs /

noun

Architecture.

plural

intrados, intradoses

1. the interior curve or surface of an arch or vault.

---

intrados British  

/ ɪnˈtreɪdɒs /

noun

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

---

Etymology

Origin of intrados

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

Example Sentences

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

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various

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

From The New Gresham Encyclopedia. Vol. 1 Part 2 Amiel to Atrauli by Various

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 Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The Cross-Town Tunnels. Paper No. 1158 by Brace, James H.

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 Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various

Norman arches resemble the doorways in having sub-arches recessed within an outer arch, the intrados often being decorated with mouldings such as the zigzag or the lozenge.

From English Villages by Ditchfield, P. H. (Peter Hampson)