A / antĕ-mūrāle
noun

antĕ-mūrāle

gen. antĕ-mūrālis · gender neuter · decl. 3rd
a protecting wall; an outwork; breastwork
a protecting wall, an outwork, breastwork (eccl. Lat.), Hier. Hom. 2: murus et antemurale, Vulg. Isa. 26, 1: luxitque antemurale, ib. Thren. 2, 8.