woad

/woʊd/

Other forms: woads

Definitions of woad

1. noun

   any of several herbs of the genus Isatis
   types:

   Isatis tinctoria, dyer's woad

   European biennial formerly grown for the blue coloring matter yielded by its leaves

   type of:

   herb, herbaceous plant

   a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
2. noun

   a blue dyestuff obtained from the woad plant
   type of:

   dye, dyestuff

   a usually soluble substance for staining or coloring e.g. fabrics or hair