woad
noun
- any of a genus (Isatis) of plants of the crucifer family; esp., dyer's woad
- the blue dye obtained from the dried, fermented leaves of such plants
See woad in American Heritage Dictionary 4
(wōd)
noun- An annual Old World plant (Isatis tinctoria) in the mustard family, formerly cultivated for its leaves that yield a blue dye.
- The dye obtained from this plant.
Learn more about woad