Woad-waxen \Woad"-wax`en\, n. [Cf. {Wood-wax}.] (Bot.) A leguminous plant ({Genista tinctoria}) of Europe and Russian Asia, and adventitious in America; -- called also {greenwood}, {greenweed}, {dyer's greenweed}, and {whin}, {wood-wash}, {wood-wax}, and {wood-waxen}.