pectŏrālis, e, adj. [pectus],
I of or belonging to the breast , breast- , pectoral : pectorale os, the breast-bone , Cels. 8, 1: tunicula, Amm. 14, 9, 7: cinctum, Ap. Met. 11, 10, 9; fascia, Vulg. Isa. 3, 24 (Hier. in loc., Vulg. Jer. 2, 32).—Hence,
II Subst.: pectŏrāle , is, n., a breast-plate , Varr. L. L. 5, § 115 Müll.; Plin. 34, 7, 18, § 43.