Glād'wyn, n.

n. [Prov. Eng. also gladdon; from glad, A-S. glād, and A-S. & O. H. Ger. wine, friend, Icel. vinr.] (Bot.) A plant of the genus Iris (I. fœtidissima), from the leaves and roots of which a purge is sometimes made by steeping them in beer. Loudon.