caldārius (calid-), a, um, adj. caldus = calidus, pertaining to or suitable for warming. cella, a warm bath, Plin. Ep. 5, 6, 26.

— Subst. caldāria, ae, f. A warm bath, Marc. Emp. 25.

— A pot for boiling, Vulg. 1 Reg. 2, 14; App. Herb. 59.

— caldārium, ii, n. A hot bath, Vitr. 5, 10, 1; 8, 2, 4; Sen. Ep. 86, 11; Cels. 1, 4.

— A room containing warm water for bathing, Vitr. 5, 10, 1.

— Esp.: calidaria maltha, for plastering the walls in baths, Pall. 1, 41, 1: caldarium aes, that is prepared by heat or fusion, Plin. 34, 8, 20, § 94.