from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An annual Old World plant (Isatis tinctoria) in the mustard family, formerly cultivated for its leaves that yield a blue dye.
- n. The dye obtained from this plant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Common name of the plant Isatis tinctoria whose leaves are used to make a blue dye.
- n. The dye made from the plant Isatis tinctoria.
- v. to plant or cultivate woad
- v. to dye with woad
from the GNU version of the Collaborative International Dictionary of English
- n. An herbaceous cruciferous plant (Isatis tinctoria) of the family Cruciferae (syn. Brassicaceae). It was formerly cultivated for the blue coloring matter derived from its leaves. See isatin.
- n. A blue dyestuff, or coloring matter, consisting of the powdered and fermented leaves of the Isatis tinctoria. It is now superseded by indigo, but is somewhat used with indigo as a ferment in dyeing.
from The Century Dictionary and Cyclopedia
- n. A cruciferous plant, Isatistinctoria, formerly much cultivated in Great. Britain on account of the blue dye extracted from its pulped and fermented leaves.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of several herbs of the genus Isatis
- n. a blue dyestuff obtained from the woad plant
Middle English wode, from Old English wād.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English wode, from Old English wād ("woad"), from Proto-Germanic *waidan, *waidaz (“woad”), from Proto-Indo-European *wAit- (“woad”). Cognate with Old Frisian wēd ("woad"), Dutch weed ("woad"), German Waid ("woad"). (Wiktionary)