Found 2 items, similar to Extrados.
English → English (WordNet) Definition: extrados extrados n : the exterior curve of an arch
English → English (gcide) Definition: Extrados Extrados \Ex*tra"dos\, n. [F.; pref. extra- outside + dos (L. dorsum) the back.] (Arch.) The exterior curve of an arch; esp., the upper curved face of the whole body of voussoirs. See Intrados. [1913 Webster]