the GNU version of the Collaborative International Dictionary of English
n. A genus of herbs, some species of which, especially the Isatis tinctoria, yield a blue dye similar to indigo; woad.
The Century Dictionary and Cyclopedia
n. A genus of plants of the natural order Cruciferæ, the type of the tribe Isatideæ, having the pod large, orbicular, oblong or linear, corneous, and with the margin coriaceous or foliaceous.
n. The white or arctic fox, Vulpes lagopus.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. Old World genus of annual to perennial herbs: woad
Word Usage
"For pus and constant pain, additional antibiotic herbs such as isatis (ban lang gen) are added."