Du-rē'ūmen, n.
n. [Lat., hardness, a hardened, i. e., ligneous, vine-branch, from durare, to harden. See DURE.] (Bot.) The central layers, or heart-wood, of an exogenous tree. Brande.
n. [Lat., hardness, a hardened, i. e., ligneous, vine-branch, from durare, to harden. See DURE.] (Bot.) The central layers, or heart-wood, of an exogenous tree. Brande.