Mordant :: Mordant (n.) Any corroding substance used in etching.
Mordant :: Mordant (n.) 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..
Mordant :: Mordant (n.) Any sticky matter by which the gold leaf is made to adhere.
Mordant :: Mordant (v. t.) To subject to the action of, or imbue with, a mordant; as, to mordant goods for dyeing..