Isatis

I´sa`tis

n.

1.

(Bot.) A genus of herbs, some species of which, especially the Isatis tinctoria, yield a blue dye similar to indigo; woad.

Thesaurus

Noun

1.

Isatis - Old World genus of annual to perennial herbs: woad genus Isatis dilleniid dicot genus - genus of more or less advanced dicotyledonous trees and shrubs and herbs Brassicaceae, Cruciferae, family Brassicaceae, family Cruciferae, mustard family - a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives woad - any of several herbs of the genus Isatis dyer's woad, Isatis tinctoria - European biennial formerly grown for the blue coloring matter yielded by its leaves