skewback
skewback · skewbacks
The side of an arch; the course of masonry on the top of an abutment with a slope for…The side of an arch; the course of masonry on the top of an abutment with a slope for the base of the arch to rest against.
Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.