an arch with the intrados widening above the springing and then narrowing to a rounded crown.
Origin of horseshoe arch
First recorded in 1805–15
Also called Moorish arch.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an arch formed in the shape of a horseshoe, esp as used in Moorish architecture
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012