Source : WordNet®

woadwaxen
     n : small Eurasian shrub having clusters of yellow flowers that
         yield a dye; common as weed in England and United States;
         sometimes grown as an ornamental [syn: {woodwaxen}, {dyer's
         greenweed}, {dyer's-broom}, {dyeweed}, {greenweed}, {whin},
          {Genista tinctoria}]