intrados

noun

noun

Etymology From French, from Latin intra (“within”) + French dos (“back”) (from Latin dostrum).

Architecture The inner curve of an arch or vault.

* Application of stitching bars to intrados (inner arch) though cracked voussoirs, grout and apply crack injection to seal.2020 May 20, Philip Haigh, “Ribblehead: at the heart of the S&C's survival and its revival: Ribblehead Viaduct repairs”, in Rail, page 27:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.