·adj Serving to fix colors.
II. Mordant ·noun Any corroding substance used in etching.
III. Mordant ·adj Biting; caustic; sarcastic; keen; severe.
IV. Mordant ·noun Any sticky matter by which the gold leaf is made to adhere.
V. Mordant ·vt To subject to the action of, or imbue with, a mordant; as, to mordant goods for dyeing.
VI. Mordant ·noun Any substance, as alum or copperas, which, having a twofold attraction for organic fibers and coloring matter, serves as a bond of union, and thus gives fixity to, or bites in, the dyes.