intrados | (n) ส่วนโค้งด้านใน |
intrados | (n) the interior curve of an arch |
Intrados | n. [ F., fr. L. intra within + F. dos the back, L. dorsum. Cf. Extrados. ] (Arch.) The interior curve of an arch; esp., the inner or lower curved face of the whole body of voussoirs taken together. See Extrados. [ 1913 Webster ] |