extrados
[
ek
-str
uh
-dos, -dohs, ek-
strey
-dos, -dohs]
/ˈɛk strəˌdɒs, -ˌdoʊs, ɛkˈstreɪ dɒs, -doʊs/
noun
,
plural
extrados
[
ek
-str
uh
-dohz, ek-
strey
-dohz]
/ˈɛk strəˌdoʊz, ɛkˈstreɪ doʊz/
(
Show IPA
),
extradoses.
Architecture
1.
the exterior curve or surface of an arch or vault.
Also called
back
.
Compare
intrados
.
Origin
1765-75;
<
French,
equivalent to
extra-
extra-
+
dos
back (<
Latin
dorsum
dorsum
Examples from the web for
extrados
The arch has a central molded keystone, carved
extrados
and paneled intrados.
British Dictionary definitions for
extrados
extrados
/
ɛkˈstreɪdɒs
/
noun
(
pl
)
-dos
(
-dəʊz
),
-doses
1.
(
architect
) the outer curve or surface of an arch or vault
Compare
intrados
Word Origin
C18: from French, from
extra-
+
dos
back, from Latin
dorsum