a. Bot. [f. mod.L. lōmentāce-us, f. lōmentum: see prec. and -ACEOUS.] Of the nature of or resembling a lomentum; characterized by lomenta; belonging to the N. O. Lomentaceæ, a former sub-order of Cruciferæ.
1830. Lindley, Nat. Syst. Bot., 88. Lomentaceous genera, such as Ornithopus.
1872. Oliver, Elem. Bot., II. 138. The siliqua of Radish—an indehiscent and jointed lomentaceous siliqua.
