n. A North American shrub of the genus Dirca, with very tough bark. See Dirca.n. An Australian tree or shrub of the genus Ceratopetalum, belonging to the saxifrage family; also, its wood.n. The Tasmanian pinkwood, Eucryphia Billardieri. See pinkwood, 2.n. In the southeastern United States, Cyrilla racemiflora, a bush or small, wide-spreading tree of bottom-lands, with a hard wood and, at the base of the trunk, a spongy pliable bark, recommended for a styptic. More often called ironwood and sometimes he-huckleberry, burnwood, or burnwood-bark, and red or white titi. Sometimes called Southern leatherwood. See Cyrillaceæ.