Bible Dictionaries
Isatis

Webster's Dictionary

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

Bibliography Information
Webster, Noah. Entry for 'Isatis'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/isatis.html. 1828.