uncĭālis, e, adj. [uncia],
of or belonging to a twelfth part , amounting to a twelfth part : asses, i. e. weighing an ounce , Plin. 33, 3, 13, § 45; so, uva, id. 14, 3, 4, § 42: altitudo, of an inch , id. 18, 16, 43, § 146; so, litterae, Hier. prol. in Job fin.