Ō/le-ān'der, n.

n. [Fr. oléandre, It. oleandro, L. Lat. lorandrum, corrupted from Lat. rhododendrum, Gr. ῥοδόδενδρον, from ῥόδον, the rose, and δένδρον, tree.] (Bot.) A beautiful evergreen shrub, having clusters of fragrant red or white flowers. It is a native of the East Indies, but the red variety has become common in the south of Europe;—called also rose-bay or South-sea rose. The plant, especially the bark of the root, is medicinal. London.